Feel your feet getting the urge to swim and spin when you slip into these officially licensed Knuckles from Sonic the Hedgehog Character Crew Socks. Featuring a custom knitted Knuckles character graphic that wraps around your leg and foot with 200n construction for finer detail, these red casual crew socks are made from 98% Polyester, 2% Spandex. Fits Sock Size 10-13 /Fits Shoe Size 8-12. Machine Wash Cold With Like Colors. Do Not Bleach. Tumble Dry With Low Heat.