Main Material: Cotton Condition: New (without tags) Measured flat, approximately 14cm from heel to toe. I believe the size is 16-19cm. - Designed to resist deformation and fit the foot comfortably with careful stitching. - The entire inner sole is made of pile (terry cloth) for cushioning. - It has a moderate thickness and gently and firmly protects your child's feet. Unlike inexpensive thin socks, this product is made with quality materials and careful sewing, so you can use it with confidence❣️ Although it is a new item, it has been stored at home, so please understand this before purchasing.