Biomecanics Size Guide

Biomecanics Size Chart

How to use size chart: If your child's foot is 12.8 cm, we recommend you choose size 21. If your child's foot is 14 cm, we recommend you choose size 23 and so on.

EU UK USA Foot Length (cm)*
20 3.5 5 12.2
21 4.5 5.5 12.8
22 5 6 - 6.5 13.5
23 6 7 - 7.5 14.2
24 7 8 - 8.5 14.8
25 8 9 15.5
26 8.5 9.5 16.2
27 9 10 - 10.5 16.8
28 10 11 - 11.5 17.5
29 11 12 - 12.5 18.2
30 12 13 18.8