NIKE, Inc.
Drop-in unitary footwear sole with first and second cushioning bodies of differing hardness

Abstract:

A sole structure for an article of footwear includes a unitary sole with a first cushioning body having a first hardness and a second cushioning having a second hardness greater than the first hardness. Both the first and the second cushioning bodies are exposed at a periphery of the sole. The second cushioning body may have a wedge surface that interfaces with a lateral extremity of the first cushioning body and angles laterally outward toward a lateral side exterior surface of the sole from a lower extent to an upper extent of the wedge surface. The second cushioning body may underlie the first cushioning body in a portion of a forefoot region of the sole such that the first cushioning body establishes a foot-facing exterior surface and the second cushioning body establishes a ground-facing exterior surface of the sole where the first cushioning body overlies the second cushioning body.