Sierra Socks Men Wool 3 Pair Pack Crew Socks 1010 76% Wool, 12% Spandex, 5% Acrylic, 4% Nylon, 3% Rubber Made in USA Machine wash warm, Tumble dry low 3-Pair Pack Wool Blend Crew all Season Socks Reinforced heel for extended wear, Full Cushion/Terry and built-in arch support Ideal for Hiking, Outdoor activities and Working outdoor Stay-up performance comfort top, Designed for extreme weather conditions Great gifts for family and friends/Fits Men Shoe Size 9-12