87% combed cotton, 10% polyester, 3% spandex Thick cotton socks with towel lining: made of high-quality skin friendly cotton, soft terry cloth covers the whole socks, which is super soft and comfortable to wear, and keeps feet warm and comfortable in cold weather Elastic fiber can not only ensure healthy feet, but also keep fit with the growth of baby feet. They are very elastic and not too tight. You don’t have to worry about leaving traces on the baby’s chubby ankles and feet. Curled cuffs design: If you unfold the cuffs, they will keep your baby’s calves warm and it is difficult to slide down. They are usually high in the middle of your calves, depending on your baby’s foot size. The large anti-skid clip can protect the baby’s safety, especially suitable for children who like to run, skateboard and jump at home. It is also very suitable for babies who learn to walk or crawl.