Sizing for Guernsey
| S 34" | M 38" | L 42" | XL 46" | XXL 50" | |
| Pit to Pit | 43cm | 45cm | 52cm | 55cm | 62cm |
| 17" | 18" | 20.5" | 22" | 24.5" | |
| Length | 69cm | 71cm | 72.cm | 73cm | 76cm |
| 27.5" | 28" | 28.5" | 29" | 30" | |
| Sleeve | 50cm | 52cm | 57cm | 58cm | 59cm |
| 20" | 20.5" | 22.5" | 23" | 23.5" |
| S 34" | M 38" | L 42" | XL 46" | XXL 50" | |
| Pit to Pit | 43cm | 45cm | 52cm | 55cm | 62cm |
| 17" | 18" | 20.5" | 22" | 24.5" | |
| Length | 69cm | 71cm | 72.cm | 73cm | 76cm |
| 27.5" | 28" | 28.5" | 29" | 30" | |
| Sleeve | 50cm | 52cm | 57cm | 58cm | 59cm |
| 20" | 20.5" | 22.5" | 23" | 23.5" |