Odd Sox Men's Crew Socks - SpongeBob & Patrick are 52% polyester, 45% cotton and 3% spandex. Fits shoe sizes US 8-12. Features an extended cuff for a snug fit, intricate knit technology for precise detail, slim lightweight combed cotton and a Y-Gore light cushioned heel to ensure a secure fit. Machine wash warm & tumble dry low. Do not bleach or iron.