When you order the children's shoes,
you should according to the Insole length.(Insole length=Foot length +1cm)
The US size is Not Standard ,Just convenient for you to do order.
The comfortable length is the foot length add about 1cm.
And Because of the long time delivery time by China Post Air Mail and child will grow up fast please choose more bigger size shoes for your child.
Please choose the right size.Measurement In CM