Size Sole      Length         Width
0-6 Months   11cm/4.33"   5.6cm/2.20"
6-12 Months  12cm/4.72"   5.8cm/2.28"
12-18Months 13cm/5.12"   6.0cm/2.36"
Tips:1.Please choose the size,the age is just for reference.
2.There is 3-5% difference according to manual measurement.
Any problem, just feel free to contact us, we will try our best to solve your problems at once.