ARTICLE OF FOOTWEAR

Abstract

A sole structure for an article of footwear includes a midsole and a stabilizing member. The stabilizing member can include a first end portion and a second end portion. The first end portion is positioned along the bottom surface of the midsole. A first sub-portion of the first end portion extends along a first side of the midsole and a second sub-portion of the first end portion extends across the bottom surface from the first side of the midsole to a second side of the midsole. The second portion extends upwardly from the first portion and onto the second side of the midsole to wrap around at least a portion of a periphery of a heel region of the midsole and onto the first side of the midsole.

Description

CROSS REFERENCE TO RELATED APPLICATIONS

The present application claims the benefit of and priority to U.S. Provisional Application No. 63/235,353, filed on Aug. 20, 2021, and entitled “ARTICLE OF FOOTWEAR,” which is incorporated by reference herein in its entirety.

REFERENCE REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

Not applicable

SEQUENCE LISTING

Not applicable

BACKGROUND

1. Field of the Disclosure

The present disclosure relates generally to an article of footwear with a stability structure, and more specifically to an article of footwear having an upper and a sole structure that includes a midsole, an outsole, and a thermoplastic polyurethane (TPU) stabilizing member.

2. Description of the Background

Many conventional shoes or other articles of footwear generally comprise an upper and a sole attached to a lower end of the upper. Conventional shoes further include an internal space (i.e., a void or cavity), which is created by interior surfaces of the upper and sole, and receives a foot of a user before securing the shoe to the foot. The sole is attached to a lower surface or boundary of the upper and is positioned between the upper and the ground. As a result, the sole typically provides stability and cushioning to the user while the shoe is worn. In some instances, the sole may include multiple components, such as an outsole, a midsole, and an insole. The outsole may provide traction to a bottom surface of the sole, and the midsole may be attached to an inner surface of the outsole, and may provide cushioning or added stability to the sole. For example, a sole may include a foam or foam-like material that may increase stability at one or more desired locations along the sole, or that may reduce stress or impact energy on the foot or leg when a user is running, walking, or engaged in another activity.

The upper generally extends upward from the sole and defines an interior cavity that completely or partially encases a foot. In most cases, the upper extends over instep and toe regions of the foot, and across medial and lateral sides thereof. Many articles of footwear may also include a tongue that extends across the instep region to bridge a gap between edges of medial and lateral sides of the upper, which define an opening into the cavity. The tongue may also be disposed below a lacing system and between medial and lateral sides of the upper, to allow for adjustment of shoe tightness. The tongue may further be manipulable by a user to permit entry or exit of a foot from the internal space or cavity. In addition, the lacing system may allow a user to adjust certain dimensions of the upper or the sole, thereby allowing the upper to accommodate a wide variety of foot types having varying sizes and shapes.

The upper may comprise a wide variety of materials, which may be chosen based on one or more intended uses of the shoe. The upper may also include portions comprising varying materials specific to a particular area of the upper. For example, added stability may be desirable at a front of the upper or adjacent a heel region to provide a higher degree of resistance or rigidity. In contrast, other portions of a shoe may include a soft woven textile to provide an area with stretch-resistance, flexibility, air-permeability, or moisture-wicking properties.

Sole assemblies generally extend between a ground surface and the upper. In some examples, the sole assembly includes an outsole that provides abrasion-resistance and traction with the ground surface. The outsole may be formed from rubber or other materials that impart durability and wear-resistance, and enhance traction with the ground surface.

While many currently-available shoes have varying features related to the above-noted properties, many shoes, including athletic shoes, and even more so running shoes, have sole structures that lack added support structures to aid in stability while running or engaging in strenuous athletic activities. This can be especially problematic for individuals who suffer from pronation and supination, which results in the foot rolling inward and outward, respectively, during normal motion of the foot. Such pronation and supination can result in injuries if not addressed.

Therefore, articles of footwear having features that aid in the stability along both the upper and sole structure thereof are desired. These and other deficiencies with the prior art are addressed by the following disclosure.

SUMMARY

A number of advantages of the articles of footwear described herein will be apparent to those having ordinary skill in the art. For example, the various components that comprise the sole structure, in particular, an elongate stabilizing member, add varying athletic benefits to the shoe, such as stiffening, or pronation and supination support.

According to one aspect of the disclosure, a sole structure for an article of footwear can include a midsole and a stabilizing member. The midsole can define a first side and a second side that extend between a top surface and a bottom surface. The stabilizing member can include a first end portion and a second end portion. The first end portion can be positioned along the bottom surface of the midsole and can include a first sub-portion and a second sub-portion. The first sub-portion can extend along the first side of the midsole and the second sub-portion can extend (diagonally) across the bottom surface from the first side of the midsole to the second side of the midsole. The second end portion can extend upwardly from the first portion and onto the second side of the midsole to wrap around at least a portion of a periphery of a heel region of the sole structure and extend onto the first side of the midsole.

In some embodiments, the stabilizing member can be disposed at least partially above the midsole in the heel region. In some cases, a distal end of the second end portion can be positioned closer to a midfoot region of the midsole than to a heel end of the midsole.

In some embodiments, the first sub-portion of the stabilizing member can be positioned in a forefoot region of the midsole and the second sub-portion of the stabilizing member can be positioned in a midfoot region of the midsole. In some cases, the second end portion can be positioned in both the midfoot region and the heel region of the sole structure.

In some embodiments, an inner surface of the first end portion the stabilizing member can be coupled to the midsole and an outer surface of the first end portion of the stabilizing member can form at least a portion of a ground engaging surface of the sole structure. In some cases, the first end portion can be at least partially disposed within a channel formed in the midsole. In some cases, the sole structure can further include an outsole having a first outsole portion and a second outsole portion that are separated by the stabilizing member. The first outsole portion and the second outsole portion can form a remainder of a ground engaging surface of the sole structure. In some cases, the first end portion can include a first flange extending from a first edge of the of the first portion. The first flange can be secured between the midsole and at least one of the first outsole portion or the second outsole portion. In some cases, the first end portion can further include a second flange extending from an opposing second edge of the of the first portion. The second flange can be secured between the midsole and the other of the first outsole portion or the second outsole portion.

According to another aspect of the disclosure, an article of footwear can include an upper and a sole structure coupled to the upper. The sole structure can extend through a forefoot region, a midfoot region, and a heel region of the article of footwear. The sole structure can include a midsole, an outsole coupled to a bottom surface of the midsole, and a stabilizing member. The stabilizing member can wrap around the midsole from a first distal end at a medial side of the forefoot region of the outsole, across to a lateral side of the midsole at the midfoot region, upwardly along the lateral side of the midsole from the midfoot region to the heel region to continue around a periphery of the heel region to terminate at a second distal end within the midfoot region on the medial side.

In some embodiments, the stabilizing member can be coupled to at least one of the midsole or the upper as it wraps around the periphery of the heel region. In some cases, the sole structure can further include an outsole coupled to the bottom surface of the midsole. The outsole can include a first outsole portion and a second outsole portion that are separated by the stabilizing member. The stabilizing member can include a flange that is secured between the outsole and the midsole. Together, the outsole and a first end portion of the stabilizing member can form a ground engaging surface of the article of footwear.

In some embodiments, an external surface of the stabilizing member can include a plurality of substantially parallel ridges that can extend along a length of the stabilizing member from the first distal end to the second distal end. In some cases, the first distal end of the stabilizing member can be coupled to at least one of the medial side of the midsole or the upper in the forefoot region. In some cases, the stabilizing member can be at least partially disposed within a channel formed in the midsole.

According to yet another aspect of the disclosure, an article of footwear can include an upper and a sole structure coupled to the upper. The sole structure can extend through a forefoot region, a midfoot region, and a heel region of the article of footwear. The sole structure can include a midsole and a stabilizing member that can include a first end portion and a second end portion. The first end portion can be positioned along a bottom surface of the midsole and can include a first sub-portion that extends along a medial side of the midsole in the forefoot region and a second sub-portion that extends across the bottom surface from the medial side to a lateral side of the midsole in the midfoot region. The second end portion can extend upwardly from the first portion and onto the lateral side of the midsole in the midfoot region. The second end portion can continue to extend rearward along the lateral side of the midsole and can wrap around a heel end of the midsole to extend onto the medial side of the midsole.

In some embodiments, the stabilizing member can be coupled to each of the midsole and the upper in at least one of the forefoot region or the heel region.

Other aspects of the articles of footwear described herein, including features and advantages thereof, will become apparent to one of ordinary skill in the art upon examination of the figures and detailed description herein. Therefore, all such aspects of the articles of footwear are intended to be included in the detailed description and this summary.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a lateral side view of an article of footwear that includes an upper and a sole structure, as disclosed herein;

FIG. 2 is a medial side view of the article of footwear of FIG. 1;

FIG. 3 is a bottom view of the article of footwear of FIG. 1;

FIG. 4 is a lateral side view of another example of an article of footwear that is similar to the article of footwear of FIG. 1;

FIG. 5 is a medial side view of the article of footwear or FIG. 4;

FIG. 6 is top view of yet another article of footwear that is similar to the article of footwear of FIG. 1;

FIG. 7 is a bottom lateral isometric view of the article of footwear of FIG. 6;

FIG. 8 is a bottom medial isometric view of another article of footwear that is similar to the article of footwear of FIG. 1;

FIG. 9 is a bottom medial isometric view of yet another article of footwear that is similar to the article of footwear of FIG. 1;

FIG. 10 is a bottom view of another embodiment of a sole structure according to aspects of the disclosure;

FIG. 11 is a lateral side view of the sole structure of FIG. 10;

FIG. 12 is a medial side view of the sole structure of FIG. 10;

FIG. 13 is a cross-sectional view of the sole structure taken along line A-A of FIG. 10; and

FIG. 14 is a lateral side view of another example of an article of footwear that is similar to the article of footwear of FIG. 1.

DETAILED DESCRIPTION OF THE DRAWINGS

The following discussion and accompanying figures disclose various embodiments or configurations of a shoe having an upper and a sole structure. Although embodiments are disclosed with reference to a sports shoe, such as a running shoe, tennis shoe, basketball shoe, etc., concepts associated with embodiments of the shoe may be applied to a wide range of footwear and footwear styles, including basketball shoes, cross-training shoes, football shoes, golf shoes, hiking shoes, hiking boots, ski and snowboard boots, soccer shoes and cleats, walking shoes, and track cleats, for example. Concepts of the shoe may also be applied to articles of footwear that are considered non-athletic, including dress shoes, sandals, loafers, slippers, and heels.

The term “about,” as used herein, refers to variations in the numerical quantity that may occur, for example, through typical measuring and manufacturing procedures used for articles of footwear or other articles of manufacture that may include embodiments of the disclosure herein; through inadvertent error in these procedures; through differences in the manufacture, source, or purity of the ingredients used to make the compositions or mixtures or carry out the methods; and the like. Throughout the disclosure, the terms “about” and “approximately” refer to a range of values ±5% of the numeric value that the term precedes.

Also as used herein, unless otherwise limited or defined, “or” indicates a non-exclusive list of components or operations that can be present in any variety of combinations, rather than an exclusive list of components that can be present only as alternatives to each other. For example, a list of “A, B, or C” indicates options of: A; B; C; A and B; A and C; B and C; and A, B, and C. Correspondingly, the term “or” as used herein is intended to indicate exclusive alternatives only when preceded by terms of exclusivity, such as “either,” “one of,” “only one of,” or “exactly one of.” For example, a list of “one of A, B, or C” indicates options of: A, but not B and C; B, but not A and C; and C, but not A and B. A list preceded by “one or more” (and variations thereon) and including “or” to separate listed elements indicates options of one or more of any or all of the listed elements. For example, the phrases “one or more of A, B, or C” and “at least one of A, B, or C” indicate options of: one or more A; one or more B; one or more C; one or more A and one or more B; one or more B and one or more C; one or more A and one or more C; and one or more of A, one or more of B, and one or more of C. Similarly, a list preceded by “a plurality of” (and variations thereon) and including “or” to separate listed elements indicates options of multiple instances of any or all of the listed elements. For example, the phrases “a plurality of A, B, or C” and “two or more of A, B, or C” indicate options of: A and B; B and C; A and C; and A, B, and C.

Further, as used herein, unless otherwise defined or limited, directional terms are used for convenience of reference for discussion of particular figures or examples. For example, references to “downward,” or other directions, or “lower” or other positions, may be used to discuss aspects of a particular example or figure, but do not necessarily require similar orientation or geometry in all installations or configurations.

The terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers, and/or sections. These elements, components, regions, layers, and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer, or section from another region, layer, or section. Terms such as “first,” “second,” and other numerical terms do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer, or section discussed below could be termed a second element, component, region, layer, or section without departing from the teachings of the example configurations.

The present disclosure is directed to an article of footwear or specific components of the article of footwear, such as an upper or a sole or sole structure. The upper may comprise a knitted component, a woven textile, a non-woven textile, leather, mesh, suede, or a combination of one or more of the aforementioned materials. The knitted component may be made by knitting of yarn, the woven textile by weaving of yarn, and the non-woven textile by manufacture of a unitary non-woven web. Knitted textiles include textiles formed by way of warp knitting, weft knitting, flat knitting, circular knitting, or other suitable knitting operations. The knit textile may have a plain knit structure, a mesh knit structure, or a rib knit structure, for example. Woven textiles include, but are not limited to, textiles formed by way of any of the numerous weave forms, such as plain weave, twill weave, satin weave, dobbin weave, jacquard weave, double weaves, or double cloth weaves, for example. Non-woven textiles include textiles made by air-laid or spun-laid methods, for example. The upper may comprise a variety of materials, such as a first yarn, a second yarn, or a third yarn, which may have varying properties or varying visual characteristics.

In addition, the present disclosure relates to an article of footwear having a sole structure attached to an upper. The sole structure may include a midsole, an outsole, and a stabilizing member. Each of the midsole, outsole, and stabilizing member may be separate components coupled with one another, or one or more of these elements may be integrally formed with each other. The midsole may be made of a foam material and is disposed between and connects the upper with the outsole. The midsole may cushion the impact from a user's foot contacting the ground. The outsole may be attached to the midsole to define a bottom surface of the shoe. The outsole may be made from a rubber material and is configured to contact the ground and provide traction. The outsole may include one or more sections, for example, a heel section and a forefoot section, although the outsole may include more than two sections at different areas, or it may be a single component. The stabilizing member may be made of a rigid plastic, such as TPU, or from another type of plastic or composite, and is provided to increase support and guide the foot of a user throughout the gait. In particular, the stabilizing member may wrap around the midsole and has portions on both the medial and the lateral sides of the article of footwear, which can help to prevent rolling of the user's foot due to pronation and supination.

A stabilizing member is an elongate member that is coupled with and wraps around the midsole. The stabilizing member has an inner surface facing the article of footwear, which is configured to couple with the midsole, and further, at least a portion of the upper when the sole structure is connected with the upper. The stabilizing member also has an outer surface, which, in some embodiments, may be smooth, contoured, or have other features such as ribs. The stabilizing member may be contoured to match adjacent portions of a midsole and/or an upper. Such features can be used to tune the flexibility of the stabilizing member, making it stiffer in some portions, or along some directions, such as the length of the stabilizing member, and they can add to the decorative nature of the stabilizing member. Furthermore, the stabilizing member may have edges that are generally smooth and curvilinear, wavy, zig-zag, or otherwise undulate. Some portions of the stabilizing member, for example, those portions adjacent the bottom surface, may have one or more flanges extending therefrom. The flanges may be disposed between the midsole and the outsole to aid in securing the stabilizing member to the sole structure.

As noted above, the stabilizing member wraps around the midsole. In particular, the stabilizing member may define a first distal end in a forefoot region proximate a medial side. The first distal end may be located adjacent the bottom surface of the sole structure or it may extend partially onto the side of the midsole or the upper. The stabilizing member may extend rearward along the bottom surface of the sole structure proximate the medial side and may cross to a lateral side. Upon reaching the lateral side, the stabilizing member may wrap upward and rearward along the lateral side of the midsole and toward a heel region. The stabilizing member may extend above the midsole in the heel region, so that it connects with the upper. The stabilizing member may also wrap around the periphery of a heel region from the lateral side to the medial side, extending forward and ending at a second distal end, adjacent to the midfoot region. In the heel region the stabilizing member may be configured to connect with both the midsole and the upper on at least a portion of its length.

FIGS. 1-3 depict a first exemplary embodiment of an article of footwear 100 including an upper 102 and a sole structure 104. As will be discussed in more detail below, the upper 102 is attached to the sole structure 104 and together with the sole structure 104 defines an interior cavity 106 into which a foot of a user may be inserted. The upper 102 may also include an insole (not shown) positioned within the interior cavity 106 that may be connected to an interior surface (not shown) of the article of footwear 100. The interior surface may directly contact a user's foot while the shoe is worn. The sole structure 104 includes a midsole 108, an outsole 110 defining a bottom surface 112 (e.g., a ground engaging surface) of the article of footwear 100, and a stabilizing member 114. In some embodiments, an outsole may not be included and a bottom of a midsole can define a ground engaging surface.

For reference, the article of footwear 100 also defines a lateral side 116 (i.e., a first side of the article of footwear 100, see FIG. 1) and a medial side 118 (i.e., a second side of the article of footwear 100, see FIG. 2). For reference, the article of footwear 100 defines a longitudinal plane 120 that extends from a toe end 122, located at a distal end of the forefoot region 126, to a heel end 124, located at a distal end of the heel region opposite the toe end 122 (see FIG. 3). The longitudinal plane 120 defines a middle of the article of footwear 100 with the lateral side 116 extending from one side of the longitudinal plane 120 and the medial side 118 extending from the other. Put another way, the lateral 116 and medial 118 sides adjoin one another along the longitudinal plane 120. In particular, the lateral side 116 corresponds to an outside portion of the article of footwear 100 and the medial side 118 corresponds to an inside portion of the article of footwear 100, in relation to a user's foot. As such, left and right articles of footwear have opposing lateral 116 and medial 118 sides, such that the medial sides 118 are closest to one another when a user is wearing the articles of footwear 100, while the lateral sides 116 are defined as the sides that are farthest from one another while being worn.

Referring to FIG. 3, the article of footwear 100 also defines a forefoot region 126, a midfoot region 130, and a heel region 134, which are shown being separated by dashed lines that intersect the longitudinal plane 120. The forefoot region 126 generally corresponds with portions of the article of footwear 100 that encase portions of the foot that include the toes, the ball of the foot, and joints connecting the metatarsals with the toes or phalanges. The midfoot region 130 is proximate and adjoining the forefoot region 126, and generally corresponds with portions of the article of footwear 100 that encase the arch of a foot, along with the bridge of a foot. The heel region 134 is proximate and adjoining the midfoot region 130 and generally corresponds with portions of the article of footwear 100 that encase rear portions of the foot, including the heel or calcaneus bone, the ankle, or the Achilles tendon.

Still referring to FIG. 3, the forefoot region 126, the midfoot region 130, the heel region 134, the medial side 118, and the lateral side 116 are intended to define boundaries or areas of the article of footwear 100, and collectively span an entire length of the article of footwear 100, from the toe end 122 to the heel end 124. It should be appreciated that aspects of the disclosure may refer to portions or elements that are coextensive with one or more of the forefoot region 126, the midfoot region 130, the heel region 134, the medial side 118, or the lateral side 116. The forefoot region 126 extends from the toe end 122 to a widest portion 137a of the article of footwear 100 (i.e., a distance between the medial side 118 and the lateral side 116 of the sole structure 104). The midfoot region 130 extends from the widest portion 137a to a thinnest portion 137b of the article of footwear 100 (i.e., a distance between the medial side 118 and the lateral side 116 of the sole structure 104). The heel region 134 extends from the thinnest portion 137b to the heel end 124 of the article of footwear 100.

With reference to FIGS. 1 and 3, the lateral side 116 begins where the toe end 122 intersects the longitudinal plane 120 and bows outward (i.e., away from the longitudinal plane 120) along the forefoot region 126 toward the midfoot region 130. At the widest portion 137a, the lateral side 116 bows inward (i.e., toward the longitudinal plane 120) toward the thinnest portion 137b, entering the midfoot region 130. Upon reaching the thinnest portion 137b, the lateral side 116 bows outward and extends into the heel region 134. The lateral side 116 then bows back inward toward the heel end 124 and terminates where the heel end 124 intersects with the longitudinal plane 120.

With reference to FIGS. 2 and 3, the medial side 118 begins where the toe end 122 intersects the longitudinal plane 120 and bows outward (i.e., away from the longitudinal plane 120) along the forefoot region 126 toward the midfoot region 130. At the widest portion 137a, the medial side 118 bows inward (i.e., toward the longitudinal plane 120) toward the thinnest portion 137b, entering the midfoot region 130. Upon reaching the thinnest portion 137b, the medial side 118 bows outward and extends into the heel region 134. The medial side 118 then bows back inward toward the heel end 124 and terminates where the heel end 124 intersects with the longitudinal plane 120.

It should be understood that numerous modifications may be apparent to those skilled in the art in view of the foregoing description, and individual components thereof, may be incorporated into numerous articles of footwear. Accordingly, aspects of the article of footwear 100 and components thereof, may be described with reference to general areas or portions of the article of footwear 100, with an understanding the boundaries of the forefoot region 126, the midfoot region 130, the heel region 134, the lateral side 116, and/or the medial side 118 as described herein may vary between articles of footwear. Furthermore, aspects of the article of footwear 100 and individual components thereof, may also be described with reference to exact areas or portions of the article of footwear 100 and the scope of the appended claims herein may incorporate the limitations associated with these boundaries of the forefoot region 126, the midfoot region 130, the heel region 134, the lateral side 116, and/or the medial side 118 discussed herein.

As shown in FIGS. 1 and 2, the upper 102 is disposed above and coupled with the sole structure 104. The upper 102 is made from a single piece of a mesh material that extends along the entirety of each of the medial 118 and lateral 116 sides, including extending over the top of the forefoot region 126 and around the heel region 134. While the upper 102 is depicted and described as a one-piece upper 102, the upper 102 may also be formed from other materials or structures. For example, many conventional uppers are formed from multiple elements (e.g., textiles, polymer foam, polymer sheets, leather, and synthetic leather) that are joined through bonding or stitching at a seam. In various embodiments, a knitted component may incorporate various types of yarn that may provide different properties to an upper. In some embodiments, the upper may incorporate multiple layers of different materials, each having different properties, for example, increased breathability or moisture wicking.

With continued reference to FIGS. 1 and 2, a number of other features may be attached or coupled to the upper to provide or enhance certain properties of the upper 102. For example, a tongue 138 is shown attached to the upper 102. The tongue 138 includes a lining and a foam pad (not shown) to increase comfort. However, in some embodiments the tongue 138 may not be a separate component, and instead may be integral with the upper 102. Additionally, the upper 102 also includes a tensioning system 140 that allows the user to adjust the upper 102 to fit a foot of a user. As shown in FIGS. 1 and 2, the tensioning system 140 includes laces 142 extending through the midfoot 130 and the forefoot 126 regions of the upper 102. Further, the upper 102 is configured with holes or other structures (not shown) to allow the laces 142 to be tightened. The TPU skin 144 may extend through the tensioning system 140 to provide greater structural integrity to the upper 102 at various stress points. In further embodiments, the tensioning system 140 may be another laceless fastening system known in the art.

With continued reference to FIGS. 1 and 2, a TPU skin 144 is applied to the outer surface of the upper. The TPU skin 144 may extend anywhere along the upper 102, including the heel 134, midfoot 130, and forefoot 126 regions. The TPU skin 144 may include multiple different portions and may be included on both the lateral side 116 and the medial side 118 of the upper. For example, in the present embodiment, each of the lateral 116 and medial 118 sides of the upper 102 include two portions of TPU skin 144. The TPU skin 144 can help to support the foot of the user, by imparting the upper 102 with different properties, such as regions that are less flexible or that stretch less. Furthermore, the TPU skin 144 may be applied to regions of the upper 102 that experience high stress or rubbing from other components, for example, proximate areas where the laces 142 attach to the upper 102.

The TPU skin 144 may be a single piece of TPU or multiple pieces of TPU. For example, as is best shown in FIG. 1, the lateral side 116 of the upper 102 includes a first TPU skin portion 144A and a second TPU skin portion 144B. The first TPU skin portion 144A has an inverted v-like shape that extends along the lateral side 116 of the upper 102. More specifically, the first TPU portion 144A has a first arm 146A that extends diagonally along the tongue 138 and receives a portion of the laces 142, and a second arm 146B that extends diagonally downward and rearward away from the tongue 138 toward the sole structure 104 (i.e., where the upper 102 and midsole 108 are joined) and the heel end 124. The second TPU portion 144B has a round shape and is disposed forward of the first TPU portion 146A to receive the remaining portion of the laces 142 on the lateral side 116.

Similarly, as is best shown in FIG. 2, the medial side 118 of the upper 102 includes a third TPU skin portion 144C and a fourth TPU skin portion 144D. The third TPU skin portion 144C is similar to the second arm 146B of the first TPU skin portion 144A and extends downwardly and rearward away from the tongue 138 toward the sole structure 104 (i.e., where the upper 102 and midsole 108 are joined) and the heel end 124. The third TPU skin portion 144C receives a portion of the laces 142 on the medial side 118 of the upper 102. The fourth TPU skin portion 144D has a v-like shape with a first arm 146C and a second arm 146D. The first arm 146C of the fourth TPU skin portion 144D extends downward and rearward away from the tongue 138 toward the sole structure 104 (i.e., where the upper 102 and midsole 108 are joined) and the heel region 134. The second arm 146D of the fourth TPU skin portion 144D is curvilinear and extends generally forward toward the toe end 122. Each of the first arm 146C and the second arm 146D of the fourth TPU skin portion 144D receive a portion of the laces 142 on the medial side 118.

Referring again to FIGS. 1 and 2, the upper 102 is joined with the sole structure 104. The sole structure 104 extends between the upper 102 and the ground, and includes the midsole 108, the outsole 110, and the stabilizing member 114. The upper 102 and the midsole 108 may be joined together by an adhesive. In addition, the upper 102 is attached with the stabilizing member 114 in the heel region 134, also by an adhesive. The sole structure 104 may also include one or more other components, which may include a lasting board, a plate, or a strobel board (not shown). The midsole 108 is defined as the portion of the sole structure 104 that extends between and connects the upper 102 with the outsole 110. The midsole 108 acts as a cushion to absorb the impact caused by the foot of a user impacting the ground, and may include some areas that are thicker to provide an increased cushioning function. For example, as shown FIGS. 1 and 2, the midsole is thicker in the heel region 134, where the user's foot first impacts the ground.

In the present embodiment, the midsole 108 extends throughout the forefoot 126, midfoot 130, and heel 134 regions from the toe end 122 to the heel end 124. The midsole 108 is made from a foam material, for example, a TPU foam, EVA (ethylene-vinyl acetate), or other thermoplastic polymeric materials, such as thermoplastic polyurethane, polyolefin elastomers, ethylene-vinyl acetate, or mixtures thereof. In some embodiments, the midsole 108 or portions of the midsole 108 may comprise beads or pellets comprising particle foams such as eTPU or eTPE-E. Further, the midsole 108 may be a dual- or multi-density foam.

As best illustrated in FIG. 3, the midsole 108 of the present embodiment is a dual-density foam. In particular, a first midsole member 148 comprising a soft EVA foam may be provided in at least the heel region 134 to provide greater impact absorption capabilities. Conversely, a second midsole member 150 comprising a denser, stiffer, EVA foam may be provided in at least the forefoot region 126 to assist with toe-off, or to provide greater stability to the forefoot 126 and other regions of the sole structure 104, such as the midfoot 130 and heel 134 regions. However, the use of different types of foams are not limited to these areas, including for example, nitrogen-infused foams. Rather, to achieve the desired cushioning characteristics, the various foams may be included in any of the forefoot 126, midfoot 130, and heel 134 regions. In addition, the various foams may be layered, or there may be pockets or cavities of different types of materials within the midsole 108.

In other aspects, the midsole 108 may include various textures on the sides of the midsole 108, which can add an aesthetic element to the article of footwear 100. For example, as shown in FIGS. 1 and 2, the midsole 108 has a texture 152 that is laser-etched into the midsole 108. The texture 152 is etched into the side of the midsole 108 along the medial 118 and lateral 116 sides, and extends throughout the forefoot 126, midfoot 130, and heel 134 regions. The texture 152 can also add to the aesthetic appeal of the shoe. Alternatively, other methods known in the art, for example UV (ultraviolet) printing, can be used to produce the various textures or other decorative elements.

As illustrated in FIG. 3, the outsole 110 is connected to and disposed below the midsole 108, and extends substantially across a lower surface of the midsole 108. The outsole 110 defines the bottom surface 112 of the sole structure and is configured to at least partially contact the ground. Additionally, the outsole 110 adds to the structural integrity of the sole structure 104 and provides traction for a user. As shown, the outsole 110 is formed from two portions, namely, a first outsole portion 110a and a second portion 110b, that are separated by the stabilizing member 114. Accordingly, the bottom surface 112 of the outsole 110 is discontinuous. Here, the first outsole member 110a extends from the heel end 124 and into the midfoot region 130 and the second outsole portion 110b extends from the toe end 122 and into the midfoot region 130. However, the outsole 110 may also be formed as a single unitary body, or as any number of separate portions. The outsole 110 is integrally formed or co-molded with midsole 108, but the outsole 110 may alternatively be attached to the midsole 108 by a glue or other adhesive. Further, the outsole 110 is integrally formed or co-molded with the stabilizing member 114. In some embodiments, the outsole 110 may also be attached to the stabilizing member 114 by a glue or other adhesive, or it may not be attached to the stabilizing member 114 at all.

With continued reference to FIG. 3, the sole structure 104 may include one or more recesses. As shown in FIG. 3, a first recess 156 is provided in the heel region 134 and a second recess 158 is provided in the forefoot region 126. The recesses 156 and 158 extend through the outsole 110 and into the midsole 108 so that the first and second midsole members 148 and 150 are visible from the bottom of the sole structure 104. While the sole structure 104 is shown as having two recesses 156 and 158, in some embodiments, more or fewer recess may be provided. Further, while the present embodiment includes recesses 156 and 158 in each of the forefoot region 126 and the heel region 134, respectively, more or fewer recesses may be included anywhere within each of the forefoot 126, midfoot 130, and heel 134 regions. While the recesses 156, 158 are intersected by the longitudinal plane 120 in the present embodiment, the recesses 156, 158 may also be biased toward either of the lateral or medial sides 116, 118.

With reference to FIGS. 1-3, the sole structure 104 includes grooves 160 (e.g., flex grooves) along the bottom surface 112, which can increase flexibility of the sole structure 104 and provide increased traction. The grooves 160 define gaps within the sole structure 104. In some embodiments, the grooves 160 may be replaced by other traction structures, for example, ribs or treads. In the present embodiment, the sole structure 104 is provided with a first or interior set of grooves 160a and a second or peripheral set of grooves 160b. As shown, all of grooves within the first set of grooves 160a are shallower than all of the grooves within the second set of grooves 160b, but this may not always be the case. Put another way, a maximum depth of all of the grooves of the first set of grooves 160a is less than a maximum depth of all of the grooves of the second set of grooves 160b, wherein the respective depths are taken along a direction that is normal to the bottom surface 112 at the respective grooves of each of the first set of grooves 160a and the second set of grooves 160b. In some embodiments, the first set of grooves 160a may have a maximum depth that is greater than or equal to a maximum depth of the second set of grooves 160b. In some embodiments, only some of the grooves of the first set of grooves 160a have a maximum depth that is less than a maximum depth of all of the grooves of the second set of grooves 160b, or vice versa.

Referring in particular to FIG. 3, the grooves of the first set of grooves 160a are elongate recesses that are each disposed within the outsole 110. Some of the grooves within the first set of grooves 160a are curved and some of the grooves within the first set of grooves 160a are straight; however, all of the grooves within the first set of grooves 160a extend at least partially through the outsole 110. In the present embodiment, the grooves within the first set of grooves 160a are disposed entirely within the outsole 110, such that each of the grooves within the first set of grooves 160a do not extend to an outer periphery of the outsole 110 and are only visible from the bottom of the article of footwear 100.

Referring again to FIGS. 1-3, the grooves of the second set of grooves 160b are located along a periphery of the outsole 110 and extend into the midsole 108. That is, the grooves within the second set of grooves 160b each have at least one open end located at the periphery of the midsole 108, along either the medial side 118 or the lateral side 116. The grooves within the second set of grooves 160b may be straight or curved. Additionally, the grooves of the second set of grooves 160b have varying depths. In particular, the grooves of second set of grooves 160b are deeper at the edges of the sole structure 104. Put another way, the second set of grooves 160b increase in depth along their length, as they extend outwardly toward their respective lateral side 116 or medial side 118. Furthermore, the outsole 110 has a plurality of fingers 166 that extend between at least some of the second set of grooves 160b. To that end, at least some of the first set of grooves 160a can be aligned with at least some of the second set of grooves 160b so that, together, the first and second sets of grooves 160a, 160b form rows that extend in a generally lateral direction between the lateral side 116 and the medial side 118 of the sole structure. For example, in the heel region 134, the first and second sets of grooves 160a, 160b form substantially arcuate rows that are convex toward the heel end 124 of the article of footwear 100.

In some embodiments, the grooves of the second set of grooves 160b can be arranged to vary a width of the fingers 166 (e.g., a dimension between adjacent grooves), depending on the particular location of the fingers 166 on the sole structure 104. For example, in the heel region 134, and more specifically, along the lateral side 116 of the heel region 134, the grooves of the second set of grooves 160b are angled relative to one another so that the fingers 166 decrease in width moving laterally outward to the lateral side 116. Conversely, along the medial side 118 of the midfoot region 130, the grooves of the second set of groove 160b are angled relative to one another so that the fingers 166 increase in width moving laterally outward to the medial side 118. Further, the fingers 166 generally become wider moving from the midfoot region 130 to the heel region 134 along the medial side 118 and generally become narrower (i.e., reduce in width) moving from the forefoot region 126 to the heel region 134 along the lateral side 116.

With continued reference to FIGS. 1-3, the sole structure 104 also includes the stabilizing member 114. The stabilizing member 114 is an elongate member that wraps at least partially around the outsole 110 and the midsole 108. As illustrated, the stabilizing member 114 is a unitary body that is made from a thermoplastic material, such as TPU. In some embodiments the stabilizing member 114 is made from translucent TPU or another translucent material. Furthermore, the stabilizing member 114 may comprise two or more materials that may have varying properties. For example, in some embodiments, the stabilizing member 114 may comprise a portion made of TPU and another portion comprising a composite, which can be integrally formed or coupled to one another.

The stabilizing member 114 may help to guide the foot of a user as it moves and provide support to the foot of a user while the foot is in contact with the ground. In particular, the stabilizing member 114 can help to prevent or reduce rolling of the foot or ankle unique to a user's particular gait. This allows users suffering from pronation or supination to achieve a more neutral gait, and can reduce the potential for injury. For example, users who pronate or supinate during their normal gait may be prone to ankle, knee, or other injuries, as those areas of the body must compensate for the foot rolling. By supporting the foot, the chances of injury can be reduced. In addition, the inclusion of the stabilizing member 114 can add to the visual appeal of the shoe and allow a user to see how the article of footwear is designed to be supportive, by providing a strong visual element.

Still referring to FIGS. 1-3, the stabilizing member 114 is an elongate member that wraps around the midsole 108 to provide support to both the medial side 118 and the lateral side 116 of the sole structure 104. The stabilizing member 114 has an inner surface that faces toward the article of footwear 100 (see e.g., inner surface 668 in FIG. 13) and an outer surface 170 that faces away from the article of footwear 100. In some embodiments, the stabilizing member 114 may be at least partially disposed within a channel formed in the midsole 108 (see e.g., channel 608a in FIG. 13). The inner surface of the stabilizing member 114 is configured to be connected with a bottom of the midsole 108 in the forefoot 126 and midfoot 130 regions, and to the midsole 108 and the upper 102 in the heel region 134. However, in some embodiments, the stabilizing member 114 may also connect with the side of the midsole 108 or the upper 102 in the forefoot 126 and midfoot 130 regions. With regard to the midsole 108, the stabilizing member 114 can be co-molded with the midsole 108, or be adhered to the midsole 108 by glue or other adhesives.

With specific reference to FIG. 3, the stabilizing member 114 can include one or more flanges 172, which are shown by phantom lines, that run at least partially along and extend parallel to a length of the stabilizing member 114. As used herein, the length of the stabilizing member 114 is a dimension taken along a centerline 181 of the stabilizing member 114 that extends from the first distal end 178 to the second distal end 180. The flanges 172 extend substantially perpendicularly from the edges of the stabilizing member 114. Correspondingly, the flanges 172 can increase a local width of the stabilizing member 114 (e.g., a dimension taken substantially perpendicular to the length). The flanges 172 are located in the forefoot region 126 and the midfoot region 130, and allow for a larger contact area between the midsole 108 and the inner surface of the stabilizing member 114, to ensure a strong bond therebetween. By including the flanges 172, the outsole 110 can be adhered to or co-molded over the top of the flanges 172, providing an even stronger bond. In some embodiments, each of the outsole 110 and the stabilizing member 114 have a thickness (e.g., a dimension taken along a direction that is normal to the bottom surface 112 and substantially perpendicular to the length and width of the stabilizing member 114) that are the same or substantially correspond with one another such that the outsole 110 and the stabilizing member 114 form a flat or continuous bottom surface 112 of the sole structure 104. For example, the outsole 110 may protrude up to 10% of its thickness beyond the stabilizing member 114 and vice versa.

Turning again to FIGS. 1-3, the stabilizing member 114 can vary in thickness throughout its length such that some portions of the stabilizing member 114 are stiffer or more flexible than other portions. This allows the article of footwear 100 to have zones that provide increased support while maintaining sufficient flexibility. In addition, the outer surface 170 of the stabilizing member 114 may be substantially flat, as it is shown in FIGS. 1-3, or the outer surface 170 can be contoured, or be provided with ribs or ridges. In some embodiments, the contours, ribs, or ridges may run substantially along an entire length of the stabilizing member 114, or substantially perpendicular to the length of the stabilizing member 114. In some embodiments, the contours and/or ribs can be curved.

With continued reference to FIGS. 1 and 3, the stabilizing member 114 defines a first end portion or bottom portion 174 and a second end portion or upper portion 176 that are connected at a corner or inflection point 175. As illustrated, the first end portion 174 extends generally diagonally across the bottom surface 112 from the medial side 118 to the lateral side 116. The second portion 176 extends upward from the first end portion 174 at the inflection point 175 and wraps along the lateral side 116 of the midsole 108 and around at least of portion of a periphery of the heel region 134, back to the medial side 118. In some embodiments, the stabilizing member 114 can be substantially mirrored about the longitudinal plane 120 so that the first end portion 174 extends generally diagonally across the bottom surface 112 from the lateral side 116 to the medial side 118. Correspondingly, the second portion 176 can extend upward from the first end portion 174 at the inflection point 175 to wrap along the medial side 118 of the midsole 108 and around at least of portion of a periphery of the heel region 134, back to the lateral side 116. In either case, the stabilizing member 114 can extend above the midsole 108 in the heel region 134, thereby forming a highest part of the sole structure 104. Further, while the inflection point 175 is positioned in the midfoot region 130, it can also be positioned within either of the forefoot region 126 or the heel region 134 to selectively provide increased support in those areas.

With continued reference to FIGS. 1-3, the first end portion 174 is associated with the portion of the stabilizing member 114 that begins at the toe end 122 of the forefoot region 126 and extends substantially rearward along the bottom surface 112 from the medial side 118 of the forefoot region 126 to the lateral side 116 of the midfoot region 130. The second end portion 176 is associated with the portion of the stabilizing member 114 that extends upwardly along the lateral side 116 of the midsole 108 at the midfoot 130 and around the periphery of the heel region 134 to the medial side 118. Accordingly, the second end portion 176 can be a heel portion of the stabilizing member 114. In some embodiments the first end portion 174 may extend rearward along the bottom surface 112 and into the heel region 134, such that the second end portion 176 begins on the lateral side 116 of the heel region 134. Alternatively, the first end portion 174 may extend rearward along the bottom surface 112 such that the second end portion 176 begins on the lateral side 116 of the forefoot region 126.

Referring to FIG. 3, the stabilizing member 114 further defines a first distal end 178 of the first end portion 174. The first distal end 178 is disposed along the bottom surface 112 at the toe end 122, proximate the medial side 118 of the forefoot region 126, and is connected to the midsole 108. In some embodiments, the distal end 178 may be connected with a portion of the side of the midsole 108 and/or the upper 102. From the first distal end 178, the first end portion 174 (e.g., the first sub-portion 174a) extends rearward and in a generally heel-to-toe direction to the midfoot region 130, along the medial side 118 of the forefoot region 126. That is, the first sub-portion 174a extends in a toe-to-heel direction from the toe end 122 toward the midfoot region 130. In some cases, as the first end portion 174 approaches the midfoot region 130, the first end portion 174 (e.g., the second sub-portion 174b) can begin to extend toward the lateral side 116.

As a result, the medial side 118 of the forefoot region 134 is provided with greater stability and the lateral side 116 of the forefoot region 134 is provided with greater flexibility, which can help to reduce or prevent pronation. The first end portion 174 then continues to extend from the medial side 118 to the lateral side 116 of the midfoot region 130. The first end portion 174 extends generally diagonally across the bottom surface 112 from a medial side of a forefoot portion of the midfoot region 130 to lateral side of a heel portion of the midfoot region 130. That is, the first end portion 174 extends generally toward the heel region 134 from the medial side 118 to the lateral side 116. It should be appreciated that the stabilizing member 114 may include both straight and curved portions and still be considered to be extending diagonally across the bottom surface 112.

While the first end portion 174 is shown being disposed along or adjacent the bottom surface 112, in some embodiments at least a portion of the stabilizing member 114, in particular, at the distal end 178, may extend upward along the medial side 118 of the forefoot region 126, such that stabilizing member 114 extends onto the side of the midsole 108 and/or the upper 102. Furthermore, because at least a portion of the first end portion 174 is disposed adjacent to the bottom surface 112, the stabilizing member 114 may also contact the ground, similar to the outsole 110.

Turning again to FIG. 1 the first end portion 174 becomes or transitions into the second end portion 176 as the stabilizing member 114 extends upward from the bottom surface 112 at the lateral side 116 of the midfoot 130. The second end portion 176 then continues to extend upward and rearward along the lateral side 116 of the midsole 108 from the midfoot region 130 to the heel region 134. In the heel region 134, the second end portion 176 continues to extend upward and rearward toward the lateral side 116 of the heel region 134, such that the second end portion 176 is disposed at least partially above the midsole 108 and is coupled with the upper 102. At the heel end 124, the stabilizing member 114 remains connected to the midsole 108. For example, as illustrated in FIG. 1, the stabilizing member 114 may only be connected with the midsole 108 at an edge, or along a small portion of the inner surface of the stabilizing member 114.

On the lateral side 116, the stabilizing member 114 is coupled to the midsole 108 as it extends upward and rearward from the bottom surface 112. Upon reaching the heel region 134, the stabilizing member 114 then extends along the upper 102 and is primarily coupled to the upper 102 moving rearward to the heel end 124. Although, the stabilizing member 114 is primarily coupled with the upper, a locally lower edge of the stabilizing member 114 remains coupled to an upper edge of the midsole 108. Subsequently, moving along the medial side 118, the stabilizing member 114 slopes downward, such that an increasingly greater portion of the stabilizing member 114 is coupled to the midsole 108 moving toward the midfoot region 130. For example, at the second distal end 180, approximately half of the width of the stabilizing member 114 is coupled to the upper 102 and the other approximately half of the width of the stabilizing member 114 is coupled to the midsole 108. Accordingly, the upper and lower edges each include multiple inflection points and an undulating configuration. In some embodiments, the stabilizing member 114 may only be connected with one of the upper 102 or the midsole 108 at the heel end 124. From there, the second end portion 176 continues around the periphery of the heel region 134 and crosses over onto the medial side 118 of the heel region 134 at the heel end 124.

Turning again to FIG. 2, the second end portion 176 is shown extending generally forward from the heel end 124, along an outer periphery of the heel region 134 and into the midfoot region 130. The stabilizing member 114 terminates at a second distal end 180 at the second end portion 176, adjacent the midfoot region 130. Put another way, the stabilizing member 114 wraps from the first distal end 178 along the medial side 118 of the forefoot region 126 of the outsole 110, across to the lateral side 116 at the midfoot region 134, upwardly along the lateral side 116 of the midsole 108 from the midfoot region 130 to the heel region 134, and around a periphery of the heel region 134 to a second distal end 180 terminating within the midfoot region 130 on the medial side 118.

As shown in FIGS. 1 and 2, the stabilizing member 114 increases in width moving along the lateral side 116 of the midsole 108 and onto the upper 104 to the heel end 124. The stabilizing member 114 then narrows moving toward the midfoot region 130 along the medial side 118, coming to a point at the second distal end 180. Additionally, the stabilizing member 114 is shaped to follow the contours of the midsole 108 and the upper 102 as it extends along the side of the midsole 108 and onto the upper 102. The stabilizing member 114 can be at a highest point on the upper 102 at the heel end 124 and can angle generally downward (i.e., toward the midsole 108) moving along the medial and lateral side 118, 116 so as to not interfere with the movement of a user's ankle. Moreover, the stabilizing member 114 can be contoured in accordance with the portions of the upper 102 and midsole 108, to which the stabilizing member 114 is connected. As a result, the stabilizing member 114 can define undulating outer and inner surfaces, which can include various inflection points, for example, proximate the heel end 124 and proximate the junction between the upper 102 and the sole structure 102 (e.g., the midsole 108).

In some embodiments, the stabilizing member 114 may terminate within the heel region 134 to allow for increased mobility, which may be preferable in some activities, for example, running, where a user's ankle travels through a large range of motion. In some embodiments, the stabilizing member 114 may terminate in either of the midfoot region 130 or the forefoot region 126 to provide increased support, which may be preferable in some activities, for example, trail running and/or hiking. The stabilizing member 114 is connected with both the midsole 108 and the upper 102 as it wraps around the heel region 134. The portion of the stabilizing member 114 that wraps around the periphery of the heel region 134 extends onto or along the upper 102 to provide additional stability and rigidity for a user.

In some embodiments, the stabilizing member may be a mirror image of the stabilizing member 114, which is mirrored across the longitudinal plane 120. More specifically, a stabilizing member may wrap from a first distal end along a lateral side of a forefoot region of an outsole, across to a medial side at a midfoot region, upwardly along the medial side of a midsole from the midfoot region to a heel region, and around a periphery of the heel region to a second distal end terminating within the midfoot region on the medial side. In such embodiments, the stabilizing member may provide greater support on the lateral side of the forefoot region and greater flexibility on the medial side of the forefoot region, which may help to reduce or prevent supination. The stabilizing member may be connected with one or both of the upper and the midsole as it wraps around the heel region.

Referring now to FIGS. 4 and 5, another exemplary embodiment of an article of footwear 200 is depicted, which includes an upper 202 and a sole structure 204. The article of footwear 200 is similar to previous embodiments, with like elements being indicated by similar reference numerals under the “2xx” series of reference numerals. While the article of footwear 200 is similar to previous embodiments in many aspects, there are some aspects that differ. In particular, a tongue 238 is integral with the upper 202, and the upper 202 is configured to rise higher onto the ankle of a user to increase support from the upper 202. Additionally, a set of grooves 260 extend deeper (i.e., a depth taken along a direction that is normal to the bottom surface 212 at the respective groove 260) into a midsole 208 at a lateral side 216 and a medial side 218. The deeper grooves 260 can further enhance traction and flexibility of the sole structure 204. Furthermore, a stabilizing member 214 includes ribs 282 extending from a first end portion 274 into a second end portion 276. Ribs 282 are also disposed in the second end portion 276 on the medial side 218 of a heel region 234. Moreover, the stabilizing member 214 is partially disposed within a channel 208a formed in the midsole 208. By recessing the stabilizing member 214 in the channel 208a, the stabilizing member 214 can be attached more securely to the midsole 208 along portions of the stabilizing member 214 that do not include flanges.

Referring now to FIGS. 6 and 7, yet another exemplary embodiment of an article of footwear 300 is shown, which includes an upper 302 and a sole structure 304. The article of footwear 300 is similar to previous embodiments, with like elements being indicated by similar reference numerals under the “3xx” series of reference numerals. While the article of footwear 300 is similar to previous embodiments in many aspects, there are some aspects that differ. In particular, the upper 302 is a two-piece upper that is connected with the sole structure 304. Further, the upper 302 has an integral tongue 338 and does not include a tensioning system or a TPU skin. Referring to the sole structure 304, an outsole 310 defines a bottom surface 312 of the article of footwear 300 and is integral with a midsole 308. There are no grooves present in either the midsole 308 or the outsole 310. Rather, the outsole 310, including first and second outsole portions 310a, 310b, is provided with a plurality of triangular ridges 384 that run perpendicular to a longitudinal plane 320 that extends through the shoe 300 from a toe end 322, located at a distal end of the forefoot region 326, to a heel end 324, located at a distal end of the heel region 334 opposite the toe end 322. Additionally, there is no texture etched in the side of the midsole 308.

With continued reference to FIGS. 6 and 7, similar to previous embodiments, a stabilizing member 314 wraps around and is embedded within the midsole 308 and the outsole 310. That is, the stabilizing member 314 is at least partially disposed within a channel 308a that is provided in the midsole 308 and the outsole 310, which is configured to receive the stabilizing member 314. A first end portion 374 of the stabilizing member 314 extends along the side of the midsole 308 and the upper 302, at a first distal end 378, which is disposed on a medial side 318 of the forefoot region 326. Additionally, the stabilizing member 314 is provided with a plurality of ridges 382, which are disposed across the entire outer surface 370 of the stabilizing member 314. Some of the ridges 382 are curved and/or concentric with one another while others are generally straight.

Referring now to FIG. 8, another exemplary embodiment of an article of footwear 400 is shown, including an upper 402 and a sole structure 404. The article of footwear 400 is similar to previous embodiments, with like elements being indicated by similar reference numerals under the “4xx” series of reference numerals. The upper 402 is laceless and the sole structure 404 is made of a plurality of expanded thermoplastic beads that are co-molded together to form a unitary structure. In some embodiments the thermoplastic beads may be co-molded with a binder. Additionally, a plurality of grooves 460 are disposed in a bottom surface 412 of an outsole 410 (e.g., on each of a first and a second outsole portion 410a, 410b). The grooves 460 run perpendicular to a longitudinal plane 420 that extends through the shoe 400 and runs from a heel end 442 to a toe end 422. Furthermore, the sole structure 404 includes two elongate recesses, namely a first recess 456 and a second recess 458. The first recess 456 is disposed in a heel region 434 of the sole structure 404, proximate a medial side 418. The second recess 458 extends through a midfoot region 430 and a forefoot region 426 of the sole structure 404.

With continued reference to FIG. 8, the sole structure 404 includes a stabilizing member 414, wherein a portion of a first end portion 474 (e.g., a first sub-portion 474a) extends upward onto the medial side 418 of the forefoot region 430 and connects with the upper 402, and a first distal end 478 is coupled to the upper 402. An outer surface 470 of the stabilizing member has a number of curved ribs 482. Some of the ribs 482 are disposed in the first end portion 474, while other ribs 482 extend from the first end portion 474 to a second end portion 476. For example, the ribs 482 include a first set of ribs 482a along the medial side 418 of the first end portion 474. The ribs within the first set of ribs 482a are arranged in an elongated spiral shape and extend onto the portion of the stabilizing member 414 that is coupled to the medial side 418 of the midsole 408. In addition, the ribs within the first set of ribs 482a extend along the lateral side 418 of the first end portion 474 and onto the second end portion 476. Like the first set of ribs 482a, the ribs within the second set of ribs 482b are also arranged in an elongated spiral shape. In some embodiments, the ribs 482 can be arranged differently, for example, in concentric ellipses, which can be shaped in accordance with the contours of the stabilizing member 414.

Additionally, the stabilizing member 414 (e.g., a second sub-portion 474b of the first end portion 474) varies in width along its length, moving from the first distal end 478 to a second distal end 480. In particular, the stabilizing member 414 widens as it crosses diagonally along the bottom surface 412 from a lateral side 416 to the medial side 418. Because the stabilizing member 414 is wider along the lateral side 416, it can provide increased support for users who supinate or roll their foot to the lateral side 416. Further, because the stabilizing member 414 remains wider throughout the second end portion 476, the stabilizing member 414 can provide greater support in the heel region 434.

Referring now to FIG. 9, another exemplary embodiment of an article of footwear 500 is shown, which includes an upper 502 and a sole structure 504. The article of footwear 500 is similar to previous embodiments, with like elements being indicated by similar reference numerals under the “5xx” series of reference numerals. While the article of footwear 500 is similar to previous embodiments in many aspects, there are some aspects that differ. In particular, the upper 502 is a laceless upper and the sole structure includes an outsole 510 having a plurality of curvilinear grooves 560 in a forefoot region 526, a midfoot region 530, and a heel region 534. Accordingly, the curvilinear grooves 560 are provided on each of a first and a second outsole portion 510a, 510b. Additionally, a stabilizing member 514 has a plurality of ribs 582, which are perpendicular to the length of the stabilizing member 514. That is, the ribs 582 are perpendicular to a midline 584 that runs from a first distal end 578 to a second distal end 580. In some embodiments, the ribs 582 may be perpendicular to the length of the article of footwear 500, or the ribs 582 may be oriented in multiple directions.

With continued reference to FIG. 9, the width of the stabilizing member 514 varies along its length. A first end portion 574 (e.g., a first sub-portion 574a) of stabilizing member 514 widens from the first distal end 576 as it extends proximate a medial side 518 of the forefoot region 526 to a widest portion 537a of the article of footwear 500. A portion of the stabilizing member 514 extends onto the upper 502 in the forefoot region 526. Extending from the widest portion 537a of the article of footwear 500, the first end portion 574 of the stabilizing member 514 (e.g., a second sub-portion 574b) curves toward a longitudinal plane 520 that extends through the shoe 500, intersecting with the longitudinal plane 520 at a thinnest portion 537b of the article of footwear 500. In doing so, the stabilizing member 514 also thins to its thinnest portion, which coincides with the thinnest portion 537b of the article of footwear 500.

The stabilizing member 514 continues to extend along a bottom surface 512 of the article of footwear 500 to a lateral side 516 in the heel region 534, proximate the heel end 524. At this point, the stabilizing member 514 curves upward at an inflection point 575 to a second end portion 576 and wraps around the periphery of the heel region 534 to a second distal end 580 on the medial side 518 of the heel region 534. The stabilizing member 514 includes a downward bend along the medial side 518 of the heel region 534, forming a u-shape that allows more room for the ankle of a user. By allowing for more room around the ankle of a user, the article of footwear 500 may allow for greater or uninhibited ankle mobility, which may be advantageous, for example, when running. Additionally, providing more room around the ankle may result in increased comfort. Moreover, because the stabilizing member 514 curves upwardly toward an eyelet stay (not shown) and/or tongue 538, the article of footwear 500 may provide increased support to reduce or prevent pronation.

Referring now to FIGS. 10-13, yet another exemplary sole structure 604 is depicted. The sole structure 604 is similar to previous sole structures, with like elements being indicated by similar reference numerals under the “6xx” series of reference numerals. The sole structure 604 only has a single recess 656 disposed in a heel region 634 of the sole structure 604 (see FIGS. 10 and 13). The recess 656 extends through an outsole 610 and into a midsole 608. Further, a stabilizing member 614 has a plurality of parallel ridges 682 running along its length (see FIGS. 11-13). In the present embodiment, there are five ridges 682, all of which have a triangular shape and extend parallel to the sides of the stabilizing member 614. That is, the ridges 682 form elongated and pointed corrugations on an outer surface 670 of the stabilizing member 614, and extend along a length of the stabilizing member 614 from the first distal end 674 to the second distal end 676. However, in some embodiments, there may be more or fewer ridges 682, and the ridges 682 may have a different profile, for example, rounded or square. Regardless, the ridges 682 can help to increase traction between the article of footwear 500 and the ground, while simultaneously increasing support.

Referring to FIG. 13, a cross sectional view of the sole structure 604 is shown taken along line A-A of FIG. 10, with an upper 602 shown by a phantom line. The sole structure 604 has a dual-density midsole 608 that includes a first midsole member 648 made of a lower density EVA foam for increased cushioning, and a second midsole member 650 comprising a higher density EVA foam for improved support and stability. The first and second midsole members 648 and 650 are co-molded but may also be formed as separate components that are connected by an adhesive. The first midsole member 648 is disposed within the second midsole member 650 and each of the midsole members 648, 650 extends throughout a forefoot region 626, a midfoot region 630, and a heel region 634. Additionally, the second midsole member 650 has a hole 658 in the heel region 634 that aligns with the recess 656. The first midsole member 648 extends into the hole 658 so that the first midsole member 648 is visible through the recess 656. Thus, the recess 656 extends through the outsole 610 and into the first midsole member 648, such that the first midsole member 648 defines a bottom of the recess 656.

Still referring to FIG. 13, a first end portion 674 of the stabilizing member 614 is embedded within a channel 608a of the midsole 608 such that the first end portion 674 of the stabilizing member 614 is connected with the midsole 608 along an inner surface 668 of the stabilizing member 614. Additionally, flanges 672 of the stabilizing member 614 are disposed along an outsole 610 (e.g., along each of a first and a second outsole portion 610a, 610b). Accordingly, the stabilizing member 614 is connected with the outsole 610 at an outer surface 670 of the stabilizing member 614. Correspondingly, the flanges 672 are disposed between the outsole 610 and the midsole 608.

Referring in particular to the heel region 634, a second end portion 676 of the stabilizing member 614 is connected with the midsole 608 at a lower edge 690 of the stabilizing member 614. This allows a majority of the inner surface 668 to be adhered to or otherwise connected with the upper 602. In some embodiments, the stabilizing member 614 may be disposed higher or lower on the midsole 608 within the heel region 634. Where the stabilizing member 614 is disposed lower on the midsole 608, the stabilizing member 614 may be connected with the midsole 608 at a portion of the inner surface 668 of the stabilizing member 614.

Referring now to FIG. 14, still another exemplary embodiment of an article of footwear 700 is shown, which includes an upper 702 and a sole structure 704. The article of footwear 700 is similar to previous embodiments, with like elements being indicated by similar reference numerals under the “7xx” series of reference numerals. While the article of footwear 700 is similar to previous embodiments in many aspects, there are some aspects that differ. In particular, a first midsole member 748 extends from a heel end 724 to a toe end 722. The first midsole member 748 thickens in height (i.e., in a direction extending vertically from the bottom surface 710 of the article of footwear 700 toward the upper 702) as it extends from the heel end 724, through a heel region 734, and to a midfoot region 730, where the first midsole member 748 is thickest. The first midsole member 748 then thins as it continues through a forefoot region 726 to the toe end 722. A second midsole member 750 is attached below the first midsole member 748 in the heel region 734 and has a wedge-like shape that compliments the first midsole member 748, with the thickest portion being disposed at the heel end 724. Both the first and second midsole members 748, 750 have grooves 760 extending upwardly from a bottom surface 712 of the article of footwear 700.

With continued reference to FIG. 14, the stabilizing member 714 does not extend around the heel region 734. Rather, a second end portion 776 of the stabilizing member 714 rises from the bottom surface 712 at a lateral side 716 of the midfoot region 730, and extends rearward to a second distal end 780, which is located in the midsole 708 at the heel end 724. The second end portion 776 thins from the midfoot region 730, coming to a point at the second distal end 780. Further, because the stabilizing member 714 does not wrap around the heel region 734, a heel cup 788 is provided to substantially wrap the heel of a user. The heel cup 788 is a piece of rigid or semi-rigid plastic, for example, TPU. In this case the heel cup 788 is formed from translucent TPU.

Any of the embodiments described herein may be modified to include any of the structures or methodologies disclosed in connection with different embodiments. For example, certain features and combinations of features that are presented with respect to particular embodiments in the discussion above can be utilized in some embodiments and in other combinations, as appropriate. Similarly, materials or construction techniques other than those disclosed above may be substituted or added in some embodiments according to known approaches. Further, the present disclosure is not limited to articles of footwear of the type specifically shown. Still further, aspects of the articles of footwear of any of the embodiments disclosed herein may be modified to work with any type of footwear, apparel, or other athletic equipment.

As noted previously, it will be appreciated by those skilled in the art that while the disclosure has been described above in connection with particular embodiments and examples, the disclosure is not necessarily so limited, and that numerous other embodiments, examples, uses, modifications and departures from the embodiments, examples and uses are intended to be encompassed by the claims attached hereto.

INDUSTRIAL APPLICABILITY

Numerous modifications to the present invention will be apparent to those skilled in the art in view of the foregoing description. Accordingly, this description is to be construed as illustrative only and is presented for the purpose of enabling those skilled in the art to make and use the invention. The exclusive rights to all modifications which come within the scope of the appended claims are reserved.

Claims

1. A sole structure for an article of footwear, the sole structure comprising:

a midsole defining a first side and a second side that extend between a top surface and a bottom surface; and

a stabilizing member that includes: a first end portion positioned along the bottom surface of the midsole, the first end portion including a first sub-portion that extends along the first side of the midsole and a second sub-portion that extends across the bottom surface from the first side of the midsole to the second side of the midsole, and a second end portion extending upwardly from the first end portion and onto the second side of the midsole, the second end portion wrapping around at least a portion of a periphery of a heel region of the sole structure to extend onto the first side of the midsole.

2. The sole structure of claim 1, wherein the stabilizing member is disposed at least partially above the midsole in the heel region.

3. The sole structure of claim 1, wherein a distal end of the second end portion is positioned closer to a midfoot region of the midsole than to a heel end of the midsole.

4. The sole structure of claim 1, wherein the first sub-portion of the stabilizing member is positioned in a forefoot region of the sole structure, the second sub-portion of the stabilizing member is positioned in a midfoot region of the sole structure.

5. The sole structure of claim 1, wherein the second end portion is positioned in both a midfoot region and the heel region of the sole structure.

6. The sole structure of claim 1, wherein an inner surface of the first end portion the stabilizing member is coupled to the midsole and an outer surface of the first end portion of the stabilizing member forms at least a portion of a ground engaging surface of the sole structure.

7. The sole structure of claim 6, wherein the first end portion is at least partially disposed within a channel formed in the midsole.

8. The sole structure of claim 7, further including an outsole having a first outsole portion and a second outsole portion that are separated by the stabilizing member, the first outsole portion and the second outsole portion forming a remainder of a ground engaging surface of the sole structure.

9. The sole structure of claim 8, wherein the first end portion includes a first flange extending from a first edge of the of the first end portion, the first flange being secured between the midsole and at least one of the first outsole portion or the second outsole portion.

10. The sole structure of claim 9, wherein the first end portion includes a second flange extending from an opposing second edge of the of the first end portion, the second flange being secured between the midsole and the other of the first outsole portion or the second outsole portion.

11. An article of footwear, comprising:

an upper; and

a sole structure coupled to the upper and extending through a forefoot region, a midfoot region, and a heel region of the article of footwear, the sole structure comprising: a midsole; an outsole coupled to a bottom surface of the midsole; and a stabilizing member that wraps around the midsole from a first distal end at a medial side of the forefoot region of the outsole, across to a lateral side of the midsole at the midfoot region, upwardly along the lateral side of the midsole from the midfoot region to the heel region to continue around a periphery of the heel region to terminate at a second distal end within the midfoot region on the medial side.

12. The article of footwear of claim 11, wherein the stabilizing member is coupled to at least one of the midsole or the upper as it wraps around the periphery of the heel region.

13. The article of footwear of claim 11, further including an outsole coupled to the bottom surface of the midsole, the outsole including a first outsole portion and a second outsole portion that are separated by the stabilizing member.

14. The article of footwear of claim 13, wherein the outsole and a first end portion of the stabilizing member together form a ground engaging surface of the article of footwear.

15. The article of footwear of claim 13, wherein the stabilizing member includes a flange that is secured between the outsole and the midsole.

16. The article of footwear of claim 11, wherein an external surface of the stabilizing member includes a plurality of substantially parallel ridges that extend along a length of the stabilizing member from the first distal end to the second distal end.

17. The article of footwear of claim 11, wherein the first distal end of the stabilizing member is coupled to at least one of the medial side of the midsole or the upper in the forefoot region.

18. The article of footwear of claim 11, wherein the stabilizing member is at least partially disposed within a channel formed in the midsole.

19. An article of footwear, comprising

an upper; and

a sole structure coupled to the upper and extending through a forefoot region, a midfoot region, and a heel region of the article of footwear, the sole structure including: a midsole, and a stabilizing member that includes: a first end portion positioned along a bottom surface of the midsole, the first end portion including a first sub-portion that extends along a medial side of the midsole in the forefoot region and a second sub-portion that extends across the bottom surface from the medial side to a lateral side of the midsole in the midfoot region, and a second end portion extending upwardly from the first end portion and onto the lateral side of the midsole in the midfoot region, the second end portion extending rearward along the lateral side of the midsole and wrapping around a heel end of the midsole to extend onto the medial side of the midsole.

20. The article of footwear of claim 19, wherein the stabilizing member is coupled to each of the midsole and the upper in at least one of the forefoot region or the heel region.