| CHEST (most important) | NECK | BACK |
| X-SMALL | 10 - 13" | 7 - 10" | 8.25 |
| SMALL | 13 - 16" | 10 - 12" | 9.5 |
| MEDIUM | 16 - 19" | 12 - 14" | 11 |
| LARGE | 19 - 21" | 14 - 17" | 13 |
| X-LARGE | 21 - 26" | 17 - 21" | 17 |
| XX-LARGE | 26 - 31" | 21 - 24" | 20 |
The following measurements are the dimensions of the actual product, not of the pet they fit. After measuring your pet, make sure all measurements fit within the following dimensions (with a little room to spare in the chest and neck).
