Polo Ralph Lauren Boys Ribbed Crew Socks Contrasting cuff, heel and toe. Micro-ribbed cuffs. Pony is embroidered below the cuff. 72% cotton. 25% polyester. 3% spandex. Machine washable. Sizes 4-7 fit sizes 10-13, sizes 8-9 fit shoe sizes 13-3, sizes 9-11 fit shoe sizes 4-10.