These are the same patented tactical crew socks worn by U.S. Special Forces soldiers, sought for their superior patented fit and unsurpassed comfort. Made in the U.S. by third and fourth generation textile manufacturers, the sock’s interior is knitted from merino wool, renowned for its softness, anti-microbial properties, and moisture-wicking ability that keeps feet cool and dry. The sock’s unique design keeps material from rubbing against the heel or bunching around the toes to prevent blisters, while a nylon exterior lining adds durability. Made with 69% merino wool/24% nylon/4% polyester/3% lycra. Black or Coyote Brown. Sizes M (Men’s 6-8, Women’s 7 1/2-9 1/2), L (Men’s 8 1/2-10, Women’s 10-11 1/2), XL (Men’s 10 1/2-12 1/2, Women’s 12-14), and XXL (Men’s 13-15 1/2, Women’s 14 1/2-16 1/2). Includes three pair.