Above CM in the colume is the insole length, must be longer 1cm than your children feet length.(please not judge according to normal EUR size, if you did not measured feet length, please choose one size larger than normal EUR size in case small)
For example, if your feet length is 14.6, you should choose US 9 with EUR 25 size and insole 15.6cm(Please not choose the size according normal US size , or EUR size, we will shipped right size according how long of the insole length in CM)
please been noted each shoes may have cm size tolerance due to hand measurement from different person