| Size | Weight (lbs) | Neck Circumference (in) | Chest Girth (in) | Back Length (in) |
| S | 2.2-5.5 | 9.0-9.8 | 11.4-12.2 | 7.8-8.6 |
| M | 5.5-8.8 | 9.8-10.6 | 13.4-14.2 | 9.4-10.2 |
| L | 8.8-12.1 | 11.0-11.8 | 15.3-16.1 | 11.0-11.8 |
| Size | Weight (lbs) | Neck Circumference (in) | Chest Girth (in) | Back Length (in) |
| S | 2.2-5.5 | 9.0-9.8 | 11.4-12.2 | 7.8-8.6 |
| M | 5.5-8.8 | 9.8-10.6 | 13.4-14.2 | 9.4-10.2 |
| L | 8.8-12.1 | 11.0-11.8 | 15.3-16.1 | 11.0-11.8 |