| This Insulated Wolverine Boot has Waterproof Nubuck leather and 1000-denier Cordura« nylon upper 400-gram Thinsulate Ultra Insulation adds warmth Permanent direct-attach molding seals out water This Waterproof Wolverine Boot also has Breathable fabric lining Removable full-cushion footbed Tough, lightweight polyurethane midsole Lightweight nylon shank fights fatigue |