A track and field shoe can include an upper, a sole structure, and a toe plate. The upper includes a medial side portion, a lateral side portion, and a toe box portion. The sole structure is attached to the upper and includes a spike plate. The spike plate has an anterior portion, a posterior portion, and a plurality of spikes. The spikes are configured for penetrating a track surface. The toe plate is attached to an anterior portion of the toe box portion of the upper. One or more portions of the toe plate are exposed from an exterior surface of the upper. The spikes are spaced apart from the toe plate such that the spikes disengage the track surface when the toe plate contacts the track surface.

An article of footwear may include an outsole having an opening extending from a top face of the outsole to a ground-contacting face of the outsole, and a traction member disposed within the opening in the outsole. The traction member has a protruding portion and flange portion extending from an upper end of the protruding portion. The flange portion is secured to the top face of the outsole.

A sole structure for an article of footwear comprises a midsole having four stacked polymeric sheets bonded to one another to define a first cushioning layer, a second cushioning layer, and a third cushioning layer. Each cushioning layer comprises a sealed chamber retaining gas in isolation from each other sealed chamber. Bonds between adjacent ones of the sheets are arranged such that the third cushioning layer is stacked directly above the first cushioning layer with the second cushioning layer bordering both the first cushioning layer and the third cushioning layer, and the sealed chamber of the second cushioning layer includes a plurality of elongated segments each extending lengthwise across a longitudinal midline of the midsole at a respective acute angle to the longitudinal midline.

A shoe includes an outsole having a heel region, a midfoot region, a metatarsal region, and a toe region. The heel region extends longitudinally from the heel end to the midfoot region, the midfoot region extends longitudinally from the heel region to the metatarsal region, and the toe region extends longitudinally from the toe end to the metatarsal region. The outsole has a medial side region, central region, and a lateral side region. A bottom surface of the outsole defines a concavity extending longitudinally from within the heel region to at least within a portion of the midfoot region. The concavity extends laterally within the central region. The concavity has a width at its widest point that is at least between 50% and 80% the width of the outsole at that point.

Flip flop sandals with a barrier around a perimeter of a sole. The barrier forms a continuous loop, thereby protecting the feet from wind and water in all directions. The flip flops comprise a medial strap, a lateral strap and a toe strap attached to the sole at locations interior to the barrier. The barrier protects the feet from water splashes, puddles, wet grass and wind. The barrier height can be in the range of 0.5-4 inches or 0.7-3 inches. Alternatively, the barrier height can be at least 40% or ½ a length of the toe strap. The barrier can be made of closed cell foam or plastic film. The attachment between the sole and barrier can be water tight.

An article of footwear is provided and includes an upper, a sole secured to the upper and including a stabilizing member extending outwardly from the upper, where the stabilizing member includes a groove that separates the stabilizing member into a medial balancing member and a lateral balancing member, and the medial balancing member and the lateral balancing member move independently of each other to provide balance and stability on different terrains, and a support plate is positioned between the upper and the sole.

A sole structure may include a bladder network. The bladder network may include multiple bladders interconnected by one or more conduits. At least a portion of the bladder network may contain a fluid. The sole structure may further include one or more stems. Each of the one or more stems may be positioned to impinge upon an external surface of, and at least partially deform, a corresponding conduit.

An EVA sole having an upper face and a bottom, comprising an inscribed channel and a plurality of recesses positioned on the upper face, a TPU material disposed of within the inscribed channel, and a nylon stabilizer, which is bonded to the upper face inside of the inscribed channel.

The invention relates to devices and methods for designing and manufacturing customized footwear, and components thereof. An example method includes a method of designing at least a portion of a sole of an article of footwear customized for a user. The method includes the steps of determining at least one input parameter related to a user, analyzing the at least one input parameter to determine at least one performance metric of a foot of the user, and determining at least one customized structural characteristic of at least a portion of a sole of an article of footwear for the user based on the performance metric.

A shoe and method of manufacturing same, the shoe including: an upper configured to receive therein a foot of a wearer of the shoe, the upper comprising a closure and a tongue configured to cover a top portion of the foot; a front sole portion attached to a front portion of a bottom surface of the upper; a heel sole portion attached to a heel portion of the bottom surface of the upper; and a torsion control bridge connecting the front and heel sole portions, wherein a window is formed between the torsion control bridge and a portion of the bottom surface of the upper located between the front and heel sole portions.