Over-The-Calf version of Darn Tough's thickest, burliest, and highest density mountaineering socks. Perfect for boots with higher cuffs, as well as the coldest of conditions. Also great for extreme cold weather use in appropriately sized backcountry ski and snowboard boots.
- 73% Merino Wool, 25% Nylon, 2% Lycra® Spandex
- Over The Calf Height
- Extra Cushion