Patent ID: 7451557

Claim:
An article of footwear comprising: an upper for extending around at least a portion of a foot; an outsole that is permanently secured to the upper and defines a plurality of apertures extending entirely through the outsole, the outsole having a ground-engaging surface positioned at a first elevation; and a midsole positioned within the upper such that a lower surface of the midsole extends into the apertures of the outsole and is exposed by the apertures, wherein the lower surface is at a second elevation, the first elevation is less than the second elevation, and the midsole is non-destructively separable from the permanently secured outsole and upper, wherein the outsole includes a rim section that extends around a periphery of the footwear, and wherein the midsole portion extending downwardly into the apertures around the periphery of the footwear includes at least one flange that extends laterally from a side portion of the midsole through the at least one outsole aperture and under the rim section to secure the midsole to the outsole.