Toe Warmers Haven Nylon zip closure Warmtex bottom layer has reflective thermal film designed to keep cold out and reflect body heat. Soft, supple leather along with polyurethane waterproof upper protects against moisture. Flexible, slip-resistant thermoplastic rubber outsole offers amazing multi-surface traction. Waterproof leather (vamp) and waterproof polyurethane (shaft) upper, polyester sockliner... Care: Wipe with wet cloth to remove dirt. Renew waterproof ability by applying spray silicone, etc.