Description All day comfort, flexibility and durability is guaranteed with the Durango Suspension System. Four key components are engineered together to create a lightweight design that consists of with a two-layer innersole, shank, shock absorbing EVA midsole and a high abrasion rubber outsole with a rolled shank area and rocker heel.PRODUCT DETAILS:Square toe Cushion Flex insole Rolled shank area 1 1/2" Rocker heel Fiberglass shank Soft mesh lining Lightweight and flexible molded EVA midsole Slip and oil resistant, dual density and abrasion resistant rubber outsole Double row sole stitch Full-grain leather foot and collar with faux shaft