| Size | Weight | Neck Opening | Base of Neck to Butt | Over the Back | Belly Strap |
|---|---|---|---|---|---|
| Extra Extra Small | 50 - 80 lbs. | 10-1/2" | 23" | 16" | 14" |
| Extra Small | 60 - 90 lbs. | 10-1/2" | 27-1/2" | 16" | 14" |
| Small | 80 - 120 lbs. | 12" | 28-1/2" | 17-3/4" | 14" |
| Medium | 110 - 140 lbs. | 13" | 31" | 19-1/2" | 14" |
| Large | 130 - 170 lbs. | 13-1/2" | 33" | 21-3/4" | 14" |
| Extra Large | 160 - 190 lbs. | 12-1/4" | 36-3/4" | 22-3/4" | 14" |