Abstract: A grid for selecting an appropriate embodiment of an athletic shoe having an upper and a multiple part sole forming an interior volume for receiving an individual's foot. The multiple part sole comprises an inner sole for engaging the plantar surface of the foot, a midsole attached to the exterior of the inner sole and substantially coextensive with the inner sole, and an outer sole attached to the midsole. The outer sole has a first portion extending from the toe of the shoe to a position beneath the foot selected according to the intended use of the shoe, and has a second contiguous portion extending from the selected position to the heel of the shoe, the first portion providing a landing surface for the shoe and the second portion being relatively thin as compared to the first portion thereby promoting proper posture and gait of the wearer.

Abstract: A shoe comprising an upper and multiple part sole. An inner sole engages the plantar surface of a foot. A shock absorbing midsole underlies the inner sole from a location underlying the toes to a location at the base of a heel of the foot. An outer sole includes a first portion under the forefoot to provide a second shock absorbing layer and to define a landing surface. A thin, relatively rigid portion underlies the heel and corresponding portion of the inner sole to support the heel. This portion is elevated above the landing surface to inhibit heel landings and strikes.