Shoe Box Men's 6 Pair Thermal Triple Blend Extra Warm Socks (1511) 50% Cotton 48% Polyester 2% Spandex Machine wash warm gentle cycle Sock Size 10-13 Shoe size 8-12 (6 Pair) Extreme weather socks, thermo insulating technology,Keeps haet close to the body Soft Cotton blended with moisture wicking fibers keep feet dry and comfortable Reciprocated heel and toe for superior fit and comfort Reinforced heel and toe provides added durability