This baby ankle sock comes with non-skid bottom which can prevent the baby from slipping. The socks are well-made with good elasticity stretchable natural breathable cotton rich soft and comfort. 80% Cotton 17% Polyester 3% Elastane Machine Wash Suitable for kids ages 0-5 years old. Convenient to wash you can wash both by hand and machine. Each pack comes with 6 pairs of premium ankle socks that match any outfit. Note: Please allow slight tolerance in size due to manual measurement and lighting in photography may result in difference in color than it is in real life.