DexShell Longlite Bamboo Waterproof Socks Imported WATERPROOF: functional interlining Porelle membrane make DexShell 100% waterproof SOFT BAMBOO LINING: Outer: 96% Nylon, 3% Elastane, 1% Cuff Elastics / Inner: 70% Bamboo rayon, 30% Nylon COMFORT: ultra light weight, seamless construction with casual design BREATHABLE: Porelle membrane make it highly breathable VERSATILE: ideal for any outdoor activity Outer: 96% Nylon, 3% Elastane, 1% Cuff Elastics Interlining: 100% Waterproof and Windproof Porelle(R) Membrane Inner: 70% Bamboo rayon, 30% Nylon Knee length with in-cuff seal Seamless construction for the highest comfort Small -  Men 4-6     (Women 5-7) Medium - Men 6.5-9   (Women 7.5-10) Large -  Men 9.5-12   (Women 10.5-13) XL -    Men 12.5-14.5