Dickies Men's Steel Toe Merino Wool Blend Boot Crew Socks 55% Merino Wool, 20% Acrylic, 14% Nylon, 10% Polyester, 1% Spandex Imported Machine Wash Steel toe durability: extended reinforcement through toe cap delivers steel toe protection and durability Premium merino wool fiber provides superior warmth and super-soft comfort Wicking, moisture management fibers keep feet dry Arch compression provides added support and stability Reciprocated heel and toe for superior fit and comfort