Crafted from premium Merino wool and copper thread, our Merino OTC Boot Socks complement all 5.11 footwear. Over-the-calf length promotes support, and nanoGLIDE construction ensures comfort in any environment. Integrated ankle and arch supports and heel, sole, and toe reinforcements enhance performance and durability. These socks are odor control and moisture-wicking, so you'll stay warm, dry, and ready to roll. Superior comfort, agility, and traction make these socks ideal for any mission and every day. Material: Wool.