With 1902 for Him by World&';s Softest Socks you can&';t go wrong.The Sleeper Cozy Crew provides dreamy comfort. One Size Fits Most (Men&';s Shoe Size 8.5-12). Made in USA. Contents: 93% Polyester, 6% Nylon, 1% LYCRAA(R) Spandex. Washing Instructions:Turn socks inside out before washing. Wash in cold water. Do not bleach. Tumble dry with low heat. Do not iron.