These kids slipper socks made of Combed cotton, provide cool and breathable to your little one on summer, helping your baby's feet grow quicklyThese infant shoes rubber shoes have strong anti-slip performance, which is lightweight and has a good anti-slip effect, can better help the baby to walkOuter Material: SyntheticClosure: Pull OnHeel Height: 0.5 centimetresHeel Type: FlatShoe Width: MediumThe toe cap is made of rubber, which can prevent babies toes from being injured while walkingwash method: hand wash and machine wash, do not machine dry.0-6 Months = 2 UK Child, 6-12 Months = 3 UK Child, 12-18 Months = 4 UK Child, 18-24 Months = 5 UK Child, 2-2.5 Years = 6 UK Child Baby Slippers Socks Toddler Girls Slippers Cotton Newborn Boys Breathable First Gift