Pendleton Men's Solid Trouser Sock, Black, Sock Size:10-13/Shoe Size: 6-12 60% Merino, 37% Nylon, 3% Spandex Made in US Machine Wash These crew socks are designed with versatility in mind A light, smooth merino wool blend helps keep you dry and comfortable year round Easy-to-match solids and durable, made-in-usa construction means you can wear them every day, too