Size Guide
| VS MAAT | DIAMETER (MM) | OMTREK (OMTREK) (MM) |
| 3 | 14.1 | 44.2 |
| 3.5 | 14.5 | 45,5 |
| 4 | 14.9 | 46,8 |
| 4.5 | 15.3 | 48,0 |
| 5 | 15.7 | 49.3 |
| 5.5 | 16.1 | 50,6 |
| 6 | 16.5 | 51,9 |
| 6.5 | 16.9 | 53.1 |
| 7 | 17.3 | 54,4 |
| 7.5 | 17.7 | 55,7 |
| 8 | 18.2 | 57,0 |
| 8.5 | 18.5 | 58,3 |
| 9 | 19.0 | 59,5 |
| 9.5 | 19.4 | 60,8 |
| 10 | 19.8 | 62.1 |
| 10.5 | 20.2 | 63,4 |
| 11 | 20.6 | 64,6 |
| 11.5 | 21.0 | 65,9 |
| 12 | 21.4 | 67,2 |
| 12.5 | 21.8 | 68,5 |
| 13 | 22.2 | 69,7 |
| 13.5 | 22.6 | 71,0 |
