Injinji Snow Midweight OTC Houndstooth NuWool Socks 64% NWool 30% Nylon 6% Lycra Imported Injinji Snow Midweight Toesock made with NuWool Fiber content: 64 NuWool, 30, Nylon 6 Lycra Prevents blisters, padded shin, compression throughout the leg to minimize soreness Ideal for snow sports, winter running, winter hiking