Size Tips How To Choose the Right Size? Please keep on with below Steps: 1 your baby&;s foot at the horizontal ground, pay attention, to get the correct foot length data, please don't bent the toes Here you get the foot length information 2 Formula: Inner length=Foot length+(0~1)cm For example, your measure your child&;s foot length is 12cm, so you should choose the footwear length with inner length 12cm+(0~1)cm=12~13cm, right here we reserve 0~1cm area for socks thickness or increasing space 3 you go to verify our size chart ,we provide the footwear inside size information, you can examine and judge the correct length If you are confused for the size, please contact with our customer support freely