Mountain Lodge Unisex Merino Wool Polar Hiker Socks, Large Machine wash cold. Do not bleach. Tumble dry low. Do not iron Unisex Merino wool hiking socks. Size Large fits Men&#39;s shoe size 9-12.5 and women&#39;s 10-13 Merino wool maintains strength and keeps foot dry and provides all day comfort Cushioned foot and leg. Stay up leg with ribbed support 71% Merino Wook, 26% Nylon, 2% Spandex, 1% Elastic