Oooh Yeah! Socks Women's Crew Socks - Pizza Party are 70% combed cotton, 27% nylon and 3% spandex. Fits shoe sizes US 5-10 and sock sizes 9-11. One size fits most. Machine wash in cold water and tumble dry low. Do not bleach. Oooh Yeah! Socks Women's Crew Socks are made from luxury combed cotton, are super soft and lightweight and allow your feet to breathe and stay cool during strenuous activity. The thin elastic edging around the opening ensures that socks lay flat against your feet and prevents them from sliding down.