Abstract: Grind shoe device of the present invention includes a shoe sole having downwardly facing heel and forefoot tread surfaces and a downwardly opening recess formed with longitudinal and transverse recess sections. A grind plate device is formed with transverse and longitudinal grind plate sections for receipt in the respective transverse and longitudinal recess sections, at least one of such grind plate sections being formed with a downwardly facing trough for grinding along a rail, curb or the like. The longitudinal grind plate section is flexible and in some embodiments is foiled of rigid sections of discrete rigid grind plate portions disposed to flex relative to one another to facilitate flexing of the sole. The method of the present invention involves the manufacturing of the sole with such downwardly facing recess and fabricating the grind plate device to be complementally received in its top side in such recesses.

Abstract: An article of athletic footwear with a sole having a downwardly opening recess removably mounting a low friction grind plate for sliding across a protruding feature on a supporting surface and including an accessible storage compartment for temporarily storing keys and the like.

Abstract: A grinding plate formed on its bottom side with a transverse downwardly facing grind surface disposed medially under the arch and configured on the medial side with a longitudinal medial runner having one radius of curvature and formed on the lateral side with a longitudinally extending runner having a downwardly and outwardly curved surface of a greater radius of curvature. In one aspect, the bearing surface is bifurcated centrally by longitudinal extending groove to form flanking bearing surface segments.