Lay paper along the wall and place the child's foot on it with the heel against the wall. Mark foot length and take measurements.

Add the foot length between 1 cm. and 1.5 cm. (growth allowance) and select the model and size in the table here..

Example: The kid must have a sneaker and its foot measures 20.5 cm. In this case, the kid must have a size 33 in the MIL model.