Features of The North Face Women's Cryos Hiker Wedge Waterproof Boot Upper: Premium distressed-leather Upper Plush calfskin collar Waterproof membrane Molded-rubber mudguard provides protection from the elements Molded-latex sock liner with a breathable mesh top sheet Sole Unit: Lightweight, microporous EVA Midsole Molded-TPU Cradle(TM) heel-stability Technology Vibram; Outsole