Turtle Fur Men's American Made Wool Blend Boot Socks (2 Pairs) Imported Made in USA Wool fiber blend provides superior warmth. Content: 38% Polyester, 30% Acrylic, 17% Wool, 14% Nylon, 1% Lycra Aero-Vent leg channel for increased moisture wicking. Heavy cushion through foot and leg for comfort. Reinforced heel and toe provides added durability. Small (sizes 5-8.5)Medium (sizes 9-10.5)Large (sizes 11-13)