Tips: How to choose the size ? Please choose size according to insole length. Insole Length = Foot Length + 1 cm ~ 1.5 cm Example: If the foot length is 16 cm, 16 cm + 1 cm ~ 1.5 cm= 17 cm ~ 17.5 cm , then you can choose the corresponding US size to make order. NOTE: 1.The US size is not the shoes of the standard size. 2.Please measure the length of your child's feet，refer to the size of the table data, and then choose the shoes for your child.