| LENGTH............... | NECK............... | GIRTH (most important) |
| XX-SMALL | 5 - 7.5" | 5.5 - 7.5" | 8.5 - 10.5 |
| X-SMALL | 7.5 - 10" | 7.5 - 9.5" | 10.5 - 13" |
| SMALL | 9.5" - 12" | 9 - 11" | 12.5 - 16" |
| MEDIUM | 11.5 - 14" | 10.5 - 12.5 | 15.5 - 18" |
| LARGE | 13.5 - 16.5" | 12 - 14" | 17.5 - 20.5" |
| X-LARGE | 15.5 - 18.5" | 13.5 - 15.5" | 20 - 23" |
| XX-LARGE | 17 - 21" | 15 - 17.5 | 22 - 25.5" |
| XXX-LARGE | 21 - 24.5" | 16.5 - 20" | 24.5 - 29.5" |
| XXXX-LARGE | 24.5 - 28.5" | 19 - 22.5" | 28.5 - 33" |
NOTE: If your dog is stouter, you should follow the size according to the girth.Please remember to always round up to the next larger size if your measurement is near or over the maximum range in the smaller size, or you pet has a broad chest, wide underside, or thick coat.
