Dickies Premium Steel Toe Thermal Camo Wool Crew Socks (2-Pack) 10-13 11% wool/69% polyester/19% acrylic/1% spandex Imported Machine wash with like colors. Use non-chlorine bleach as needed. Tumble dry medium. Extended reinforcement through the cap provides steel toe protection. Premium fiber provides ultimate warmth and comfort. Full cushion throughout foot provides comfort and warmth. Arch compression keeps socks in place for greater comfort. Reinforced heel and toe provides superior durability and fit.