Abstract: A sole structure for an article of footwear. The sole structure includes at least one support plate located on an underside of a midsole on a medial forefoot side of the midsole and extending from a medial edge of the midsole to at least a longitudinal center line of the midsole, wherein a lateral edge of the plate is located medially of the lateral edge of the midsole. The support plate may contain at least one sipe or groove extending laterally across the midsole to provide flexibility in a forefoot-to-heel direction of the midsole. The support plate may contain at least one rail.

Abstract: A method of making a foamed article, for example a foamed component for an article of footwear, includes forming an unfoamed, thermoplastic polymer into an unfoamed article; heating the article to soften the article and infusing the softened article with at least one inert gas at a first pressure greater than atmospheric pressure that is sufficient to cause the at least one inert gas to permeate into the softened article; and reducing the pressure to second pressure below the first pressure with the unfoamed article softened to at least partially foam the article. A surface of a partial mold limits foam expansion in at least one direction but less than all directions. The article or a part of the article may be formed from an unfoamed structure of interconnected, unfoamed, thermoplastic polymeric members spaced to define openings between the thermoplastic polymeric members.

Abstract: An upper for an article of footwear may include a knitted component that includes a first zone, a second zone, and a third zone. Each of the first zone, the second zone, and the third zone may extend toward a collar area of the upper at least partially in a heel area of the upper. The second zone is located between the first zone and the third zone such that the second zone is located in a substantially central portion of the heel area. The second zone may include an elasticity that is greater than an elasticity of the first zone and also greater than an elasticity of the third zone.

Abstract: An upper may include a knitted component having an interior surface and an exterior surface. The knitted component may include at least one integrally knitted cushion region located on the interior surface in the rearfoot region. The cushion region may include a plurality of tubular rib structures that project away from the second surface of the knitted component, and within the rearfoot region, the plurality of tubular rib structures may extend vertically and parallel to a heel centerline of the upper.

Abstract: A method of making a foamed article, for example a foamed component for an article or footwear, comprises depositing an unfoamed, thermoplastic polymer onto a support surface in a three-dimensional printing process to form an unfoamed article; heating the article to soften the article and infusing the softened article with at least one inert gas at a first pressure greater than atmospheric pressure that is sufficient to cause the at least one inert gas to permeate into the softened article; and reducing the pressure to second pressure below the first pressure while the article is softened to at least partially foam the article, wherein a surface of a partial mold limits foam expansion in at least one direction but less than all directions.

Abstract: A sole structure for an article of footwear. The sole structure includes at least one support plate located on an underside of a midsole on a medial forefoot side of the midsole and extending from a medial edge of the midsole to at least a longitudinal center line of the midsole, wherein a lateral edge of the plate is located medially of the lateral edge of the midsole. The support plate may contain at least one sipe or groove extending laterally across the midsole to provide flexibility in a forefoot-to-heel direction of the midsole. The support plate may contain at least one rail.

Abstract: An article of footwear includes a sole structure. The article of footwear further includes a first member that extends away from the sole structure. The first member at least partially defines a medial side and a lateral side of the article of footwear. Moreover, the second member has a body, a first support arm, and a second support arm. The body is attached to the first member such that the first member and the body cooperate to define a void that is configured to receive a foot. The body is also attached to the sole structure. The first support arm is attached to the first member on the medial side, and the second support arm is attached to the first member on the lateral side.

Abstract: A sole structure for an article of footwear. The sole structure includes at least one support plate located on an underside of a midsole on a medial forefoot side of the midsole and extending from a medial edge of the midsole to at least a longitudinal center line of the midsole, wherein a lateral edge of the plate is located medially of the lateral edge of the midsole. The support plate may contain at least one sipe or groove extending laterally across the midsole to provide flexibility in a forefoot-to-heel direction of the midsole. The support plate may contain at least one rail.

Abstract: In one aspect, the present disclosure provides a method. The method may include placing an upper on a last, where the upper includes a lower perimeter edge secured to a lasting element, and where the last includes an opening for receiving the lasting element. The method may further include feeding the lasting element at least partially through an opening of the last and tensioning the lasting element to tighten the upper around the last by pulling the tensioning element at least partially through the opening.

Abstract: An upper for an article of footwear may include a knitted component that includes a first zone, a second zone, and a third zone. Each of the first zone, the second zone, and the third zone may extend toward a collar area of the upper at least partially in a heel area of the upper. The second zone is located between the first zone and the third zone such that the second zone is located in a substantially central portion of the heel area. The second zone may include an elasticity that is greater than an elasticity of the first zone and also greater than an elasticity of the third zone.

Abstract: A sole structure for an article of footwear comprises a sole plate that has a forefoot portion with a foot-facing surface. The sole plate has at least one groove extending at least partially transversely in the foot-facing surface. The at least one groove is open when the sole structure is dorsiflexed in a first portion of a flexion range, and closed when the sole structure is dorsiflexed in a second portion of the flexion range that includes flex angles greater than in the first portion of the flexion range.

Abstract: A pre-tensioned article and method of making an article of footwear involving pre-tensioning a sole structure during manufacturing. In some embodiments, the sole structure may include a plurality of apertures that provide an auxetic effect. In further embodiments, the upper may also be pre-tensioned in a similar manner as the sole structure.

Abstract: A method of making a foamed article comprises (a) injection molding a molten thermoplastic elastomer to form an precursor; (b) crosslinking the thermoplastic elastomer; (c) heating the thermoplastic elastomer to a first temperature to soften the thermoplastic elastomer; (d) infusing the thermoplastic elastomer with at least one inert gas at a first pressure that is sufficient to cause the at least one inert gas to permeate into the softened thermoplastic elastomer; and (e) while the article is softened, reducing the pressure to a second pressure below the first pressure to at least partially foam the precursor into a foamed article, wherein the foamed article is substantially the same shape as the precursor.

Abstract: In one aspect, the present disclosure provides a method. The method may include placing an upper on a last, where the upper includes a lower perimeter edge secured to a lasting element, and where the last includes an opening for receiving the lasting element. The method may further include feeding the lasting element at least partially through an opening of the last and tensioning the lasting element to tighten the upper around the last by pulling the tensioning element at least partially through the opening.

Abstract: The present disclosure provides a knitted component, the knitted component with a knit element that forms at least a portion of an upper for an article of footwear and defines an interior void for receiving a foot. A lower perimeter edge of the knit element may extend between a lateral side and a medial side of the upper. At least one strand of the knitted component may extend through the lower perimeter edge on opposite sides of the knitted component so as to extend between the lateral side and the medial side of the upper. The knitted component may be formed on a knitting machine, and the at least one strand may be configured to be tensioned to tighten the upper around a last.

Abstract: A sole for article of footwear includes a midsole component having an inner surface and an outer surface opposite the inner surface. A plurality of blind holes each extends from the outer surface toward the inner surface. The plurality of blind holes are arranged in an auxetic configuration in the outer surface. Each hole in the plurality of holes extends towards the inner surface. The plurality of blind holes is arranged in a pattern that provides a tunable performance characteristic. The patterns of blind holes vary between different regions of the midsole component to provide different types of responses in the different regions.

Abstract: An upper for an article of footwear may include a knitted component that includes a first knitted zone, a second knitted zone, and a third knitted zone. Each of the first knitted zone, the second knitted zone, and the third knitted zone may extend from a collar area of the upper to a biteline of the upper, where the first knitted zone, the second knitted zone, and the third knitted zone are each located at least partially in a heel area of the upper, and where the second knitted zone is located between the first knitted zone and the third knitted zone such that the second knitted zone is located in a central portion of the heel area. The second knitted zone may include an elasticity that is greater than an elasticity of the first knitted zone and also greater than an elasticity of the third knitted zone.

Abstract: Methods and systems are provided for forming a molded foam article. An example method may include molding a plurality of separate pieces of closed-cell foam by exposure to a temperature cycle within a sealed mold to soften the plurality of pieces sufficiently for physical bonding; and forming a molded foam article with the pieces bonded together without an adhesive, wherein, during the temperature cycle, the mold is unsealed at least once to release gases and/or pressure. In another example, a method includes exposing a filled, sealed mold filled with a plurality of pieces of foamed material to a heating cycle; at a threshold temperature, unsealing the filled, sealed mold until a pressure reduces to within a threshold of atmospheric pressure; and, following the unsealing, cooling the filled mold prior to removing a molded foam article.

Abstract: An article of footwear includes a sole structure with an auxetic structure and a filler. The auxetic structure includes an aperture. The filler is received in the aperture. The auxetic structure is configured to deform auxetically. The sole structure is configured to deform between a neutral position and a deformed position. The aperture is configured to deform as the sole structure deforms between the neutral and deformed positions. The auxetic structure includes a first material and the filler includes a second material. The second material is softer than the first material.

Abstract: A method of making a foamed article, for example a foamed component for an article or footwear, comprises forming a structure of interconnected, unfoamed, thermoplastic polymeric members spaced to define openings between the thermoplastic polymeric members. The structure may be made by printing a thermoplastic polymeric material with a three-dimensional printer. The thermoplastic polymeric members are heated to a first temperature to soften the thermoplastic polymeric members and the softened thermoplastic polymeric members are infused with at least one inert gas at a first pressure greater than atmospheric pressure. The first pressure is sufficient to cause the at least one inert gas to permeate into the softened thermoplastic polymeric members. After being infused with the inert gas, the pressure is reduced to at least partially foam the thermoplastic polymeric members.