NIKE, Inc.
Intermediate sole structure with siping

Abstract:

An intermediate sole structure for an article of footwear includes a foamed thermoplastic sole component. The foamed thermoplastic sole component has a foamed thermoplastic base layer and a foamed thermoplastic outer layer that is integrally formed with the foamed thermoplastic base layer. The outer layer includes a plurality of sipes extending through the outer layer and terminating at the base layer. The thermoplastic sole component has an inner surface defined by the base layer, an opposite, outer surface defined by the outer layer, and a thickness defined between the inner surface and the outer surface. The inner surface is substantially planar and is operative to be adhered to a ground-facing surface of an upper. Additionally, the thickness is smaller at a peripheral edge of the sole component than within a central region.