Shoe sole structure having controlled slippage

Abstract From the Canadian patent

Abstract Of The Disclosure, A sock lining layer corresponding to the shape of a shoe is secured to one side of a foam layer of substantially the same size and shape. A backer layer is secured to the other side of the foam layer. The periphery of said layers are secured together. Slippage control between the sock lining and the foam layer is attained by stitching in the form of a closed loop wholly disposed at the location adapted to support a ball of a foot. The loop stitching has two extensions each extending from one end of the loop to the periphery of said layers at a location between the heel end of the layers and said one end of said loop.