The Nike Medium Crew Sock is the perfect sock for sport or casual wear. This durable sport youth sock comforts your feet during intense workouts and casual wear. Premium cotton blend provides comfort. Arch support offers a snug, secure fit. Half-cushion sandwich terry foot delivers added comfort while absorbing shock. 79% cotton/17% polyester/3% nylon/1% spandex. Package of three. Imported. Sz: M (fits youth shoe size 3-5).