Wigwam Women's Fireside Authentic Classic Retro Fashion Crew Socks 51% Cotton, 35% Acrylic, 10% Nylon, 3% Polyester, 1% Spandex Made in US Machine Wash USA manufactured with a 2 year performance guarantee Features the comfort of cotton and acrylic combined with the durability of polyester Wigwam 100 plus year legacy of proven fit and comfort and durability Classic neck and nubs multicolor style 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)