100% Polyester Imported Size Yoth Large= Adult S: Men’s/Youth Shoe Size 6Y-6.5, Women’s Shoe Size 6.5-8 Machine wash warm. Use only non-chlorine bleach when needed. Tumble dry low. Soft and comfortable; Fine Quality; Integrated ribbed back leg and ankle support The meshed design with high quality fiber make these socks with high air filtration and moisture management capability during games! Recommended for all level athletes and trainees.