Warm Tips: Don't guess your dog's size. Please measure your dog at the narrowest point of the waist.
| Size | Waist |
| X-Small | 9"-11" |
| Small | 11"-14" |
| Medium | 15"-17" |
| Large | 18"-21" |
| X-Large | 22"-27" |
| XX-Large | 28"-33" |
Note: If your dog is in between sizes, factor in their weight. A heavier dog, go up a size , a skinner dog, go down a size.