The Kids’ size is different with different designs, there is no standard size , please measure the foot length and choose the correct size.
Suggest you order 1cm~1.5cm longer than your kids’ foot length, For Example, foot length is 16cm, you can choose 16+1cm=17cm=size
US size 9.5 = EU size 26 = Insole Length 15.6 cm , fit for foot length 14.6 cm
US size 10 = EU size 27 = Insole Length 16.2 cm , fit for foot length 15.2 cm
US size 11 = EU size 28 = Insole Length 17 cm , fit for foot length 16 cm
US size 11.5 = EU size 29 = Insole Length 17.7 cm , fit for foot length 16.7 cm
US size 12 = EU size 30 = Insole Length 18.3 cm , fit for foot length 17.3 cm
US size 13 = EU size 31 = Insole Length 19 cm , fit for foot length 18 cm
US size 1 = EU size 32 = Insole Length 19.8cm , fit for foot length 18.8 cm
US size 2 = EU size 33 = Insole Length 20.4 cm , fit for foot length 19.4cm
US size 3 = EU size 34 = Insole Length 21.2cm , fit for foot length 20.2 cm
US size 3.5 = EU size 35 = Insole Length 22 cm , fit for foot length 21 cm
