RANDY SUN Unisex Fashion Waterproof Windproof Green Sock Great for Skiing 2-Pair Outer: 74% high waterproof nylon, 23% iycra,3% elastane, Interlayer: a high performance lightweight function of waterproof and breathable membrane, Lining: 64% coolmax,3% iycra,33% elastane Ankle length sock made with the eco friendly coolmax inner Ultra lightweight with casual design,naturally antibacterial and sweat absorbing Strategic cushion protects high-impact areas of feet,embedded arch support helps reduce foot fatigue Waterproof and highly breathable sock,true seamless toe delivers superior comfort and reduced irritation Arm our dry material wicks moisture,accelerates evaporation,the block technology helps prevent growth of odor-causing bacteria