70% COOLMAX EcoMade 25% Nylon 5% Lycra * ? Recipient of the 2008 Seal of Acceptance by the American Podiatric Medical Association (APMA) for its ability to effectively manage moisture and promote healthy digital alignment * ? Made with CoolMaxEcoMade, a highly-evolved fabric made from recycled resources, breathable, soft and durable * Machine wash on warm or hand wash your toesocks after each use, and line dry. Do not machine dry or dry clean your toesocks. * China