An article of footwear (100), apparel (500, 600), and/or sporting equipment (300, 400), and methods of manufacturing thereof, having a hydrogel present on at least a portion of an externally-facing side of the article. The hydrogel is effective in reducing soil accumulation on the article, and/or for reducing soil adhesion to the article.

The disclosure relates to articles and components thereof, including outsoles, which can be used in conditions normally conducive to the accumulation of soil. In particular, the articles have substrate body, a tie layer secured to the substrate body, and a material including a hydrogel secured to the tie layer. The material can prevent or reduce the accumulation of soil during use. The presence of the tie layer can minimize or prevent delamination of the hydrogel containing material during normal use.

A traction element arrangement for a sole structure of an article of footwear is described. Traction elements of a first group are associated with a lateral side of the sole structure. Traction elements of a second group are associated with a medial side of the sole structure. Traction elements of the second group include multiple medial rotational traction elements that each have a plurality of individual traction elements arranged in a circular grouping. Each circular grouping is a different size to provide more or less rotational movement to the associated portion of the sole structure. In one embodiment, the shape of the traction elements corresponds to the shape of the circular grouping.

A sole structure for an article of footwear is provided and includes a first sole plate formed at least in part from a first material having a first stiffness and including a first ground-engaging portion and a second ground-engaging portion, the first ground-engaging portion defining a first aperture extending around the second ground-engaging portion. The sole structure further including a membrane coupled to the first ground-engaging portion and the second ground-engaging portion and at least partially exposed by the first aperture, the membrane formed at least in part from a second material having a second stiffness that is less than the first stiffness.

A self-cleaning sport shoe includes a traction member or plurality thereof, extending downward from the bottom of the shoe to traction the playing field surface below upon contact. The self-cleaning sport shoe incorporates a compressible cleaning structure, smaller in size and less cumbersome than existing cleaning type cushions and which is symbiotically mated, when applicable, to a concave reservoir located in the sport shoe outer sole, and in certain instances of design both the outer sole and accommodatingly shaped mid sole as well. As the structure is compressed and expanded, debris that might otherwise remain attached is discarded. This concave reservoir appreciably enhances the cleaning ability of its compressible cleaning structure and the shoe as a whole.

A spike and key system is provided that includes a spike having a conical tip with a hole extending therethrough, and a key member including a first key having a racetrack shaped opening, and a second key having a rotatable key member designed to interact with the hole in the spike.

A self-cleaning sport shoe includes a traction member or plurality thereof, extending downward from the bottom of the shoe to traction the playing field surface below upon contact. The self-cleaning sport shoe incorporates a compressible cleaning structure, smaller in size and less cumbersome than existing cleaning type cushions and which is symbiotically mated, when applicable, to a concave reservoir located in the sport shoe outer sole, and in certain instances of design both the outer sole and accommodatingly shaped mid sole as well. As the structure is compressed and expanded, debris that might otherwise remain attached is discarded. This concave reservoir appreciably enhances the cleaning ability of its compressible cleaning structure and the shoe as a whole.

Ground-engaging components for articles of footwear include: (a) an outer perimeter boundary rim that at least partially defines an outer perimeter of the ground-engaging component, wherein the outer perimeter boundary rim defines an upper-facing surface and a ground-facing surface opposite the upper-facing surface, wherein the outer perimeter boundary rim defines an open space at least at a forefoot support area of the ground-engaging component, and wherein a rearmost extent of the outer perimeter boundary rim is located within one of: an arch support area or a forward heel support area of the ground-engaging component (and/or at these areas of an overall sole structure); and (b) a support structure extending from the outer perimeter boundary rim and into or at least partially across the open space.

The present invention is directed toward an article of footwear having a sole structure effective to increase traction on a support surface. The article of footwear includes a sole structure comprising a first sole structure and a second sole structure. The article of footwear includes a forefoot region, midfoot region, and hindfoot region. The first sole structure is disposed in the forefoot and hindfoot regions. The second sole structure is disposed in the midfoot region. An extension of the second sole structure that extends through the forefoot region is substantially covered by the first sole structure. A plurality of lugs extend downwardly from the bottom surface of the first sole structure. At least one lug extends downwardly from the extension of the second sole structure through the first sole structure. The first sole structure and the second sole structure have different durometers.

A sole structure for an article of footwear includes a plate made of a polymeric material and a plurality of cleats each made of a metallic material. Each of the cleats is overmolded onto the plate. Each of the cleats includes an internal portion and an external portion coupled to the internal portion. The external portion is disposed outside the plate. The internal portion is disposed inside the plate. The internal portion includes a lattice framework. The lattice framework defines a plurality of holes. The plate partly extends through the holes of the lattice framework to secure the plurality of cleats to the plate.