U.S. Army Heavy Duty Thermal Socks 2 Pack

US Army Heavy Duty thermal socks. Two pairs in package. Temperature rating of 5F to -25F. See pictures for the many features of these socks! Machine washable, tumble dry low. Material is cotton 62%, polyester 36% and spandex 2%. Fits mens shoe size 6-12.5, sock size 10-13. Note that the calf of these socks differ- one is gray, the other is black