MOCCIS Baby sizes
EU  | UK  | USA  | Approximate age |
| 16-17 | 0-1 | 1-2 | 0-6 month |
| 18-19 | 2-3 | 2.5-3.5 | 6-12 month |
| 20-21 | 3.5-4 | 4-5 | 12-18 month |
| 22-23 | 5-6 | 6-6.5 | 18-24 month |
| 24-25 | 7-8 | 7.5-8 | 2-3 year |
MOCCIS Junior sizes
| EU | UK | USA | Approximate age |
| 26-27 | 8.5-9 | 9-10 | 3-4 year |
| 28-29 | 10-11 | 10.5-11.5 | 4-6 year |
| 30-31 | 11.5-12.5 | 12-13 | 6-8 year |
| 32-33 | 13-1 | 13.5-1 | 8-10 year |
| 34-35 | 2-3 | 2-3.5 | 10-12year |