An article of footwear with a traction system. The traction system includes a plurality of traction elements of various heights on the outsole that undergo rotation within the penetrated substratum while avoiding damage from digging the surface while walking. The plurality of traction elements has a shortened height at pivot points of a foot and a lengthened height away from the pivot points of the foot.

Ground-engaging components for articles of footwear include 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 an opposite ground-facing surface. The outer perimeter boundary rim defines an open space at least at a forefoot support area of the ground-engaging component. A matrix structure extends from the outer perimeter boundary rim (e.g., the ground-facing surface and/or the upper-facing surface) and across the open space at least at the forefoot support area to define an open cellular construction with plural open cells across the open space at least at the forefoot support area. The matrix structure defines one or more sets of adjacent open cells, the set(s) including at least three open cells that are substantially aligned in the forefoot support area along a line extending in a forward medial-to-rear lateral direction.

Ground-engaging components for articles of footwear include 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 an opposite ground-facing surface. The outer perimeter boundary rim defines an open space at least at a forefoot support area of the ground-engaging component. A matrix structure extends from the outer perimeter boundary rim (e.g., the ground-facing surface and/or the upper-facing surface) and across the open space at least at the forefoot support area to define an open cellular construction with plural open cells across the open space at least at the forefoot support area. The matrix structure defines one or more sets of adjacent open cells, the set(s) including at least three open cells that are substantially aligned in the forefoot support area along a line extending in a forward medial-to-rear lateral direction.

A sole structure for an article of footwear includes a baseplate defining a ground-contacting surface of the sole structure and at least two ground-engaging members extending from the ground-contacting surface. The at least two ground-engaging members including a first portion and a second portion, the first portions of the ground-engaging members being connected to one another by a bridge formed separately from the baseplate.

A crampon includes a crampon base for fitting to an underside of an item of footwear, such as a shoe or a boot. A harness extends from the crampon base and may be attached to the crampon base using rivets. The harness and the crampon base define a space for receiving the item of footwear. The crampon base comprises at least one cleat assembly with a cleat base embedded within the crampon base. One or more spikes extend from the cleat base.

An article of footwear includes a plurality of first cleats mounted on a first side of the article of footwear and a plurality of second cleats mounted on a second side of the article of footwear. Each of the first cleats includes at least one lateral leg and at least one medial leg, the at least one lateral leg having a first hardness and the at least one medial leg having a second hardness, wherein the first hardness is different than the second hardness. Each of the second cleats includes a limited number of legs, wherein all the limited number of legs on the at least one second cleat have a same hardness.

An article of footwear includes a plurality of first cleats mounted on a first side of the article of footwear and a plurality of second cleats mounted on a second side of the article of footwear. Each of the first cleats includes at least one lateral leg and at least one medial leg, the at least one lateral leg having a first hardness and the at least one medial leg having a second hardness, wherein the first hardness is different than the second hardness. Each of the second cleats includes a limited number of legs, wherein all the limited number of legs on the at least one second cleat have a same hardness.

An article of footwear with a cleated sole includes an upper with an affixed midsole and multiple cleat plates spaced from one another; and an outsole encircling at least one of the cleat plates, affixed to the midsole. The cleat plates include a flat base with at least one cleat extending perpendicular to the surface. The bases are more pliant than the cleats and the outsole is more pliant than the bases. The footwear is comfortable and allows the foot to be the primary acting force in the beginning of locomotion, contributing to the athlete's strength and health.

A sole structure for an article of footwear includes an outer fabric layer and an inner chassis that is more rigid than the fabric layer. The fabric layer includes a plurality of fabric protrusions and the inner chassis includes a plurality of chassis protrusions that correspond to the fabric protrusions. Both the fabric protrusions and the chassis protrusions extend into cleat members of the sole structure.

A sole structure for an article of footwear includes an outer fabric layer and an inner chassis that is more rigid than the fabric layer. The fabric layer includes a plurality of fabric protrusions and the inner chassis includes a plurality of chassis protrusions that correspond to the fabric protrusions. Both the fabric protrusions and the chassis protrusions extend into cleat members of the sole structure.