| Size | Upper strap | Lower Strap |
| Pony | 20.5" - 22.5" / 52 - 27cm | 12.5" - 16" / 32 - 40cm |
| Cob | 22.5" - 24.5" / 57 - 62cm | 16" - 19" / 40 - 48cm |
| Full | 24.5" - 26.75" / 62 - 68cm | 18.5" - 21.5" / 47 - 55cm |
| XFull | 25.5" - 27.5" / 65 - 70cm | 21" - 24" / 53 - 61cm |
Measurements are taken from where the upper and lower strap should sit comfortably on the horses head:
