éSize ChartPlease measure the insole length of your shoes to decide perfect sizeChoose bigger size if your size is measured flat11 M US Little Kid-----EU27--insole length: 18cm11.5 M US Little Kid---EU28--insole length: 19cm12 M US Little Kid-----EU29--insole length: 19.5cm12.5 M US Little Kid---EU30--insole length: 20cm13.5 M US Little Kid---EU31--insole length: 20.5cm1 M US Little Kid------EU32--insole length: 21cm2 M US Little Kid------EU33--insole length: 21.5cm2.5 M US Little Kid----EU34--insole length: 22cm3.5 M US Big Kid-------EU35--insole length: 22.5cm4.5 M US Big Kid-------EU36--insole length: 23cm5 M US Big Kid---------EU37--insole length: 23.5cm5.5 M US Big Kid-------EU38--insole length: 24cm6 M US Big Kid---------EU39--insole length: 24.5cm6.5 M US Big Kid-------EU40--insole length: 25.5cmCaution: Beginner should be accompanied by adults when handing this shoes.é