LZSYC:Size Reference:

If you are in the top of the range, we suggest you get One Size Up for more comfortable fit.

US 9-10 Little Kids(foot length: 7.08in / 18 cm);

US 11-12 Little Kids (foot length: 7.48in / 19 cm);

US 12-13 Little Kids (foot length: 7.87in / 20 cm);

US 1-2 Little Kids (foot length: 8.26in / 21 cm);

US 3-4 Little Kids (foot length: 8.66in / 22cm).

Note:
Due to difference of displayer,there may have slight color differences.