Union Bindings Size Chart
| MEN | SMALL | MEDIUM | LARGE |
| MONDO | 24 - 25.5 | 26 - 28 | 28.5+ |
| UK | 5 - 6.5 | 7-9 | 9.5+ |
| US MEN | 6 - 7.5 | 8-10 | 10.5+ |
| EURO | 38 - 40.5 | 41 - 43 | 43.5+ |
| WOMEN | SMALL | MEDIUM | LARGE |
| MONDO | 21 - 23.5 | 24 - 25.5 | 26 - 28 |
| UK | 2 - 4.5 | 5 - 6.5 | 7-9 |
| US WOMEN | 4 - 6.5 | 7 - 8.5 | 9-11 |
| EURO | 34 - 37 | 38 - 40.5 | 41 - 43 |
| YOUTH | EXTRA SMALL | SMALL | MEDIUM |
| MONDO | 17.5 - 21 | 21 - 23.5 | 24 - 25.5 |
| UK | 10K - 2 | 2 - 4.5 | 5 - 6.5 |
| US YOUTH | 11C - 3 | 3 - 5.5 | 6 - 7.5 |
| EURO | 28 - 34 | 34 - 37 | 38 - 40.5 |