Men's sock size 10-13, fits shoe size 6 - 12. 78% Polyester, 20% Nylon, 2% Spandex Durable & Long Lasting � All Foozys socks are made to last. They are not thin or flimsy and will not rip like other novelty socks. Perfect as casual and as dress socks. They make a great gift for family, friends or anyone you love. Care Instructions: Machine wash warm, do not bleach, tumble dry low.