10.5 M US Little Kid = 29 CN = Insole Length 17.8cm
11 M US Little Kid = 30 CN = Insole Length 18.5cm
12 M US Little Kid = 31 CN = Insole Length 19.3cm
13 M US Little Kid = 32 CN = Insole Length 20.1cm
1 M US Little Kid = 33 CN = Insole Length 20.7cm
1.5 M US Little Kid = 34 CN = Insole Length 21.2cm
2 M US Little Kid = 35 CN = Insole Length 21.7cm
3 M US Little Kid = 36 CN = Insole Length 22.2cm
3.5 M US Big Kid = 37 CN = Insole Length 22.7cm