Are you a jock, or an indoor-games-only sort of guy? No worries! Roll the dice and wear these geeky socks when you're looking for a critical win, no matter what the odds. 70% Cotton, 25% Polyester, 5% Spandex. Men's sock size 10-13; Fits US Men's shoe size 6-12.5. Machine wash - cold. Do not bleach. Tumble dry low.