Gore Bike Wear Overshoes, Gore Tex Material: [membrane/laminate] Gore-Tex, [face fabric, lining] 100% polyester, [sole] 59% polyamide, 10% KEVLAR, 31% polyurethane, [cuff] 100% polyamide Closure: [back] zipper, [sole] hook-and-loop, [cuff] elastic Sole: KEVLAR Compatibility: road shoes with external cleats Claimed Weight: 98 g