| Size | Girth | Back |
|---|---|---|
| Small | 11" - 21" | 11" - 17" |
| Medium | 17" - 29" | 15" - 23" |
| Large | 23" - 37" | 19" - 29" |
| Extra Large | 29" - 45" | 23" - 35" |
| Size | Girth | Back |
|---|---|---|
| Small | 11" - 21" | 11" - 17" |
| Medium | 17" - 29" | 15" - 23" |
| Large | 23" - 37" | 19" - 29" |
| Extra Large | 29" - 45" | 23" - 35" |