Comfortable for everyday use and featuring cushioned toe and heel for added durability. 5 colorful styles to keep your child's feet warm and dry on any adventure. Features: Superwash Merino Wool Crew length Cushioned toe and heel Arch compression Easy-on construction Naturally anti-microbial Details: 82% merino wool, 16% polyester, 2% spandex Machine wash warm. Do not iron. Lay flat to dry. Size: Toddler (1-2) Little Kid (3-6), (6-year-olds might size up to Big Kid.) Big Kid (7-10)