2pk Men's or Women's Mountain Lodge 80% Merino Wool Socks Thermal Hiking Crew Color: brown, cushioned foot and leg Stay-up leg with ribbed support, ultra soft Merino wool maintains strength and stretch, breathable, keeps feet dry and warm all day 80% merino wool, 17% nylon, 2% spandex, 1% elastic, USA made, machine washable and dryable Medium fits USA Shoe Size Men's 4-9 and Women's 4-10, Large fits USA Shoe size Men's 9-12.5 and Women's 10-13