Trespass Womens/Ladies Janus Ski Socks (2 Pair Pack) 100% Nylon Trespass thermal winter ski / snowboard socks. Long leg style sock with durable warm knit. Technical pressure point protected design, featuring arch support, heel stretch, plus cushioned front boot guard for added comfort. Elasticated rib top. Material: 85% Acrylic, 13% Nylon, 2% Elastane.