Shoe Box Womem's 6 Pack Thermal Wool Blens Extreme Weather Socks 40% Acrylic 30% Wool 28% Polyester 2% Spandex Machine Wash Sock size 9-11, fits shoe 6-9 (6 Pair) Extreme weather socks, thermo insulating technology,Keeps haet close to the body Soft Wool 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