sandra862 years ago000I am overwhelmed with the sizes... my daughter is 4.5 months and has a foot length of approx. 11cm. which size does she need then? (I often read that this shoe is cut rather small). Show in original language (German)1 answerLoeneli2 years ago000Children's shoe size 20/21 corresponds to approx. 12.3-13 cm foot size. However, if the child is not yet walking, the booties can be a little bigger.Show in original language (German)