Abstract: A traction device for a prosthetic running foot having a curved profile and mechanisms for attaching the traction device to the prosthetic running foot are provided. The traction device includes a sole portion for traction and a midsole for improved rollover. The traction device has fasteners (e.g., clamps) that attach to the top of the prosthetic running foot or a cavity that removably receives the toe of the prosthetic running foot. The traction device also has a strap that removably couples to a clip permanently or removably attached to the top surface of the prosthetic running foot.

Abstract: Golf shoes include one or more of the following: (a) a foot stabilizer system that interacts with a shoe securing system to securely engage and/or wrap around a foot of a wearer; (b) a natural motion sole, optionally including flex grooves that allow a weight transfer from back-to-front and/or from side-to-side; (c) a six cleat configuration (e.g., four cleats in a forefoot region, two cleats in a heel region, and no cleats located directly under a big toe); (d) a forefoot moderator plate positioned to moderate or reduce user feel of the forefoot cleats; (e) a lateral half heel counter extending from a rear heel area to a lateral midfoot or lateral forward heel area of the shoe; and/or (f) one or more medial, forefoot, sidewall traction elements at or near a big toe area of the sole.

Abstract: Golf shoes include one or more of the following: (a) a foot stabilizer system that interacts with a shoe securing system to securely engage and/or wrap around a foot of a wearer; (b) a natural motion sole, optionally including flex grooves that allow a weight transfer from back-to-front and/or from side-to-side; (c) a six cleat configuration (e.g., four cleats in a forefoot region, two cleats in a heel region, and no cleats located directly under a big toe); (d) a forefoot moderator plate positioned to moderate or reduce user feel of the forefoot cleats; (e) a lateral half heel counter extending from a rear heel area to a lateral midfoot or lateral forward heel area of the shoe; and/or (f) one or more medial, forefoot, sidewall traction elements at or near a big toe area of the sole.

Abstract: An article of footwear is disclosed that includes at least one of a stretchable upper and an articulated sole structure. The upper may include an exterior layer and an interior layer. The exterior layer forms at least a portion of an exterior of the upper, and the exterior layer includes a plurality of incisions that extend through the exterior layer. The interior layer is located adjacent an inner surface of the exterior layer, and the interior layer is exposed through the incisions. The sole structure may include a connecting portion and a plurality of discrete sole elements. The connecting portion is positioned adjacent the upper and may extend along a longitudinal length of the upper. The sole elements extend from the connecting portion, and the sole elements are separated by a plurality of sipes that extend upward into the sole structure.

Abstract: An article of footwear is disclosed that includes at least one of a stretchable upper and an articulated sole structure. The upper may include an exterior layer and an interior layer. The exterior layer forms at least a portion of an exterior of the upper, and the exterior layer includes a plurality of incisions that extend through the exterior layer. The interior layer is located adjacent an inner surface of the exterior layer, and the interior layer is exposed through the incisions. The sole structure may include a connecting portion and a plurality of discrete sole elements. The connecting portion is positioned adjacent the upper and may extend along a longitudinal length of the upper. The sole elements extend from the connecting portion, and the sole elements are separated by a plurality of sipes that extend upward into the sole structure.

Abstract: Articles of footwear, including athletic footwear, include one or more of: (a) an upper; (b) a sole structure including a midsole and an outsole, the outsole having a plurality of polygonal lugs arranged about a base surface of the outsole. The outsole may include one or more regions wherein the characteristics of a portion of the lugs within a region differ from the characteristics of a portion of the lugs in another region. The lugs may differ, for example based on size, construction and/or spacing between the lugs. Methods of manufacturing such articles of footwear also are disclosed.

Abstract: Articles of footwear, including athletic footwear, include one or more of: (a) an upper; (b) a sole structure including a midsole and an outsole, the outsole having a plurality of polygonal lugs arranged about a base surface of the outsole. The outsole may include one or more regions wherein the characteristics of a portion of the lugs within a region differ from the characteristics of a portion of the lugs in another region. The lugs may differ, for example based on size, construction and/or spacing between the lugs. Methods of manufacturing such articles of footwear also are disclosed.

Abstract: An article of footwear is disclosed that includes a fluid-filled chamber with one or more flexion zones. The flexion zones may be areas of the chamber where a tensile element, for example, is absent, or the flexion zones may be areas of the chamber where opposite surfaces of the chamber are bonded together. The footwear may also include a sole structure with a flexion zone, and the flexion zone of the chamber may be aligned with the flexion zone of the sole structure. In other configurations, the chamber may include a chamber secured within a depression of a midsole of the footwear.

Abstract: An article of footwear is disclosed that includes an upper and a sole structure secured to the upper. The sole structure includes a connecting portion positioned adjacent the upper and extending along a longitudinal length of the upper. A plurality of discrete sole elements extend downward from the connecting portion. The sole elements define a lower surface, and the sole elements are separated by a plurality of sipes that extend upward from the lower surface and into the sole structure. An outsole may be located within the sipes or grooves and extend between the sole elements, with a lower portion of the outsole extending beyond the lower surface of the sole elements.

Abstract: An article of footwear is disclosed that includes a fluid-filled chamber with one or more flexion zones. The flexion zones may be areas of the chamber where a tensile element, for example, is absent, or the flexion zones may be areas of the chamber where opposite surfaces of the chamber are bonded together. The footwear may also include a sole structure with a flexion zone, and the flexion zone of the chamber may be aligned with the flexion zone of the sole structure.

Abstract: Articles of footwear, including athletic footwear, include one or more of: (a) an upper; (b) a sole structure including a midsole and an outsole, the outsole having a plurality of polygonal lugs arranged about a base surface of the outsole. The outsole may include one or more regions wherein the characteristics of a portion of the lugs within a region differ from the characteristics of a portion of the lugs in another region. The lugs may differ, for example based on size, construction and/or spacing between the lugs. Methods of manufacturing such articles of footwear also are disclosed.

Abstract: An article of footwear is disclosed that includes at least one of a stretchable upper and an articulated sole structure. The upper may include an exterior layer and an interior layer. The exterior layer forms at least a portion of an exterior of the upper, and the exterior layer includes a plurality of incisions that extend through the exterior layer. The interior layer is located adjacent an inner surface of the exterior layer, and the interior layer is exposed through the incisions. The sole structure may include a connecting portion and a plurality of discrete sole elements. The connecting portion is positioned adjacent the upper and may extend along a longitudinal length of the upper. The sole elements extend from the connecting portion, and the sole elements are separated by a plurality of sipes that extend upward into the sole structure.

Abstract: An article of footwear is disclosed that includes an upper and a sole structure secured to the upper. The sole structure includes a connecting portion positioned adjacent the upper and extending along a longitudinal length of the upper. A plurality of discrete sole elements extend downward from the connecting portion. The sole elements define a lower surface, and the sole elements are separated by a plurality of sipes that extend upward from the lower surface and into the sole structure. An outsole may be located within the sipes and extend between the sole elements, with a lower portion of the outsole extending beyond the lower surface of the sole elements.

Abstract: An article of footwear is disclosed that includes a fluid-filled chamber with one or more flexion zones. The flexion zones may be areas of the chamber where a tensile element, for example, is absent, or the flexion zones may be areas of the chamber where opposite surfaces of the chamber are bonded together. The footwear may also include a sole structure with a flexion zone, and the flexion zone of the chamber may be aligned with the flexion zone of the sole structure. In other configurations, the chamber may include a chamber secured within a depression of a midsole of the footwear.

Abstract: A sole for an article of footwear to be used on a granular surface includes a sole of compressible material having an upper surface and a lower surface. A peripheral lip projects downwardly and outwardly from the lower surface of the sole. A plurality of fins projects downwardly from the lower surface of the sole.

Abstract: An article of footwear is disclosed that includes at least one of a stretchable upper and an articulated sole structure. The upper may include an exterior layer and an interior layer. The exterior layer forms at least a portion of an exterior of the upper, and the exterior layer includes a plurality of incisions that extend through the exterior layer. The interior layer is located adjacent an inner surface of the exterior layer, and the interior layer is exposed through the incisions. The sole structure may include a connecting portion and a plurality of discrete sole elements. The connecting portion is positioned adjacent the upper and may extend along a longitudinal length of the upper. The sole elements extend from the connecting portion, and the sole elements are separated by a plurality of sipes that extend upward into the sole structure.

Abstract: An article of footwear for sand sports includes an outsole and an upper secured to the outsole. The upper has a first toe pocket configured to receive a big toe of a user and a second toe pocket configured to receive at least some of the remaining toes of the user. A wrap extends around a midfoot portion of the outsole and the upper, and around a heel portion of the upper. A plurality of cleats may be secured to a lower surface of the outsole.

Abstract: A sole for an article of footwear to be used on a sand surface includes a sole of compressible material having an upper surface and a lower surface. A peripheral lip projects downwardly and outwardly from the lower surface of the sole. A plurality of fins projects downwardly from the lower surface of the sole.