Ecosox Viscose from Bamboo XL Low Cut Sport Socks 80% Viscose from Bamboo, 10% Polyester, 5% Nylon, 3% Spandex, 2% Rubber Made in USA SIZE: X-LARGE Men's Shoe Size 12-14 Moderate cushioning in ball/heel protects against blisters Arch Support for: better fit, support, fights fatigue Helps control and prevent foot odors Exclusive EcoSox construction wicks away moisture