Waterproof Suede Leather upper. 400 Grams of 3M Thinsulate Ultra Insulation. Wave Mesh lining with waterproof membrane. Ortholite with Performance Arch Suppprt removable full-cushion footbed. Wolverine ICS technology allows wearer to personalize individual comfort by adjusting a gel disc under the insole. Cement construction. Nylon shank. Slip resistant and non-marking rubber outsole.