An ideal choice when theres a risk of getting your feet wet while cycling, commuting, hunting, hiking, fishing, or working outside.Our 100% waterproof socks are constructed using premium materials and by bonding three layers together to make one highly waterproof and breathable sock: Outer Layer – 94% Nylon, 6% Elastane Middle Layer – Aquasealz waterproof membrane Inner Layer – 75% Bamboo Rayon, 23% Nylon, 2% Elastane