The Arched Texas Youth Sock is a natural fiber that allows your feet to breath and has a verysoft 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: Youth - Shoe Size - 13- 1-5 - Approx. age 4-8 Years)