A shoe sole includes a rear bottom surface part and a toe portion. The rear bottom surface part is formed to extend from a rearfoot portion to a midfoot portion and, when the shoe sole is placed on a flat virtual surface, the rear bottom surface part is in contact with the virtual surface. A height of the toe portion from the virtual surface is set to 170% or greater and 250% or less with respect to a thickness dimension in the rear bottom surface part.

A shock absorber includes a three-dimensional structure composed of a unit structure repeatedly, regularly and continuously arranged in at least one direction, the unit structure being a three-dimensional shape formed by a wall having an external shape defined by a pair of parallel planes or curved surfaces. In the shock absorber, a differently shaped portion which does not correspond to the wall defining the unit structure is locally provided in a shock absorbing region which is a region in which the three-dimensional structure has the unit structure disposed.

A shock absorber includes a three-dimensional structure composed of a unit structure repeatedly, regularly and continuously arranged in at least one direction, the unit structure being a three-dimensional shape formed by a wall having an external shape defined by a pair of parallel planes or curved surfaces. When the unit structure occupies a cuboidal space representing a unit space and defined by mutually orthogonal three sides having a first side extending in an axial direction in which the shock absorber exhibits a shock absorbing function as the shock absorber receives a load and second and third sides each extending from one end of the first side in a direction orthogonal to the axial direction, and the first side has a length L1 and a longer one of the second and third sides has a length L2, the shock absorber satisfies 1.1≤L1/L2≤4.0.

A method of making a midsole for an article of footwear includes forming a plurality of foam layers, arranging the plurality of foam layers in a mold to form the midsole, piercing the plurality of foam layers with pins, and introducing heat with the pins to bond the plurality of layers together.

Provided is a cushion partially or entirely composed of a foam, wherein the foam is composed of: a hydrocarbon-based oil including ethylene and α-olefin as constituent units; and a polymer composition including one or a plurality of polymers.

The present invention provides a cushion partially or entirely composed of a foam, the foam composed of a polymer composition that includes a homopolymer or a copolymer including a constituent unit derived from farnesene.

A dual-layered midsole for footwear includes an internal midsole layer and an external midsole layer, which are coupled to and separated by a Strobel board. The internal midsole layer may compress and expand with the movement of a wearer of an article of footwear including the dual-layered midsole, while the external midsole may provide stability and cushion for the wearer. Materials selected for the internal and external midsole layers may provide tuned viscoelastic properties to different areas of the midsole as a function of midsole layer thickness at each sole area.

An article of footwear includes an upper and a plate having a top surface facing the upper and a bottom surface formed on an opposite side than the top surface, the plate extending from a first end in a forefoot region to a second end in a heel region. A first cushioning element is attached to the bottom surface of the plate in the forefoot region and a second cushioning element is attached to the bottom surface of the plate in the heel region, the second cushioning element being separated from the first cushioning element by a first gap formed in a mid-foot region. One or more fluid-filled bladders are each at least partially surrounded by the first cushioning element in the forefoot region and have a top surface attached to the bottom surface of the plate.

Beads may be stitched to a substrate layer and then fused to form structures including foam midsoles, foam pads, and other foam structures. Beads may be embroidered to multiple substrate layers and then folded or stacked together to form a preform used in a mold to form a midsole.

A fluid-filled chamber includes first subchamber having a substantially U-shape. The fluid-filled chamber also includes a second subchamber having a substantially U-shape and being spaced apart from the first subchamber in a direction extending along a longitudinal axis of the fluid-filled chamber.