US Patent 10292452 Rocker shoes, rocker shoe development kit and method

A rocker shoe has a lower rocker surface extending across the plantar surface of the shoe sole from the heel and terminating short of the toe. A rocker shoe construction kit has a rigid or substantially rigid rocker piece having an upper surface for securing over a major portion of a lower plantar surface of the sole of a shoe upper and a lower surface of predetermined rocker shape, a cushioning layer for securing over the lower surface of the rocker piece, and a layer of tread material configured for securing over the lower surface of the cushioning layer and any exposed portion of the plantar surface of a shoe.