ROCK-A-THIGH Unisex-Baby Infant Sustained Thigh Socks 52% Cotton/25% Polyester/18% Polyester-lycra/5% Elastane Machine Wash 3.5" high 1" wide Made with soy-based ink for the non-skid grips Colored by dyes that are oeko-tex standard 100 certified, an internationally recognized environmental standard Made in the USA