Size guide Kids shoes Size FOOT LENGTH (CM) 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 15.5 16.2 16.8 17.5 18.5 18.8 19.5 20.2 20.9 21.6 22.2 22.9 23.6 24.2 24.9 gucci red case. * Please take a look that this is a guide only and the measurements can be different depends on the brand and style of clothes.