●Size Length: Fits mens shoe size 7.5-12 and womens shoe size 5.5-10. (Total length: 40cm, Tube width: 9cm) ●Material: 98% polyester and 2% spandex. They are soft and breathable, it is stretchable, simple, durable and machine washable. ●Features: The socks are black, the sole is thickened, and the premium materials guarantee a soft touch and long-lasting durability, keeping your feet dry and allowing them to breathe. ●All Occasions: A fun sock set to wear in different seasons. Our socks can be paired with sandals, boots, sneakers, running shoes and more. ●Great Gifts: Novelty birthday gifts for sons, daughters, sisters, boyfriends, girlfriends, best man and friends for Halloween, Christmas, Fathers Day, Crazy Socks Day and more.