Altra Running Mens Men's Provision Walker-M, Black, 11 M US 100% Synthetic and textile Imported Rubber sole Altra Running Mens Provision Walker Shoe, Black, 11 M US Natural Foot Positioning: FootShape Toe Box with Fully Cushioned Zero Drop Platform Designed to improve walking form, toe splay, stability and comfort StabiliPod outsole, slip resistant sole 5mm contour footbed