Wigwam Women's Pikes Peak Pro Lightweight Outdoor 2 Pub Crew Socks 46% Nylon, 27% Merino Wool, 20% Polyester, 4% Spandex, 3% Lyocell Made in US Machine Wash USA manufactured with a 2 year performance guarantee The combination of merino wool and patented DRI release engineered blend keeps feet dry, odor and blister free Wigwam 100 plus year legacy of proven fit and comfort and durability Peak 2 pub versatile fashion and function Men's sock sizes - medium (fits us shoe size 5-9.5) large (fits us shoe size 9-12) X-large (fits us shoe size 12-15)