One Size Fits Most - sized for about 10-13 men's sock (generally US men's shoe size 8-12) Material: 80% cotton, 15% polyester, 5% Spandex blend fabric. Made in Korea. Machine wash warm with similar colors. Use only non-chlorine bleach when needed and tumble dry low. Novelty socks are perfect for the year and for any occasion, wear as dress socks for work or casual socks paired with your sneakers. It is stylish, fun and fashionable. These crew socks are nice and soft on your feet and will easily assimilate into your daily wardrobe. They are comfortable for daily wear and give your feet some protection.