The Allover Printed Toddler Sock is a natural fiber that allows your feet to breath and has a very soft hand for comfort. Cotton is hypoallergenic. It does not irritate sensitive skin or cause allergies. Anatomically formed y-heel for the perfect fit. Color block heel and toe sock. Made in the USA. (Size: Toddler - Shoe Size 3-8 - Approx. 9-24 Months)