We all want warm, dry feet during the winter weather season. Sealskinz Cold-Weather Midcalf Socks for Men can offer both with the inclusion of unique hydrophilic membranes that remain 100% waterproof, yet wick moisture away from your skin. By bonding together three layers of premium materials, the windproof and breathable socks perfectly insulate and regulate their temperature, making them the ideal choice for extra-chilly conditions. The outer layer is made of 90% nylon and 10% elastane. Middle layer is made of 100% hydrophilic membrane. The inner layer is made of 35% merino wool, 35% acrylic, 23% polyester, 3.5% nylon, 3.5% elastane. Machine wash. Imported. Outer layer: 90% nylon/10% elastane Middle layer: 100% hydrophilic membrane Inner layer: 35% merino wool/35% acrylic/23% Polyester/3.5% nylon/3.5% elastane Waterproof, yet breathable Moisture-wicking Insulated and temperature-regulating Midcalf height