For best fit measure the girth of the dog. This is the area behind the front legs and around the body. The neck will typically fall into place once girth is determined. If the measurement is close to the end of the size range, go up to the larger size.
| Size | Weight LBS | Neck Inches | Girth Inches |
| XS | 7 - 12 | 11 - 18 | 12 - 19 |
| SM | 12 - 23 | 14 - 22 | 15 - 24 |
| MD | 23 - 42 | 16 - 27 | 18 - 29 |
| LG | 42 - 77 | 18 - 31 | 19 - 33 |
| XL | 77 - 90 | 21 - 36 | 22 - 38 |
For best fit measure the girth of the dog. This is the area behind the front legs and around the body. The neck will typically fall into place once girth is determined. If the measurement is close to the end of the size range, go up to the larger size.
| Size | Weight LBS | Neck Inches | Girth Inches |
| XS | 7 - 12 | 11 - 18 | 12 - 19 |
| SM | 12 - 23 | 14 - 22 | 15 - 24 |
| MD | 23 - 42 | 16 - 27 | 18 - 29 |
| LG | 42 - 77 | 18 - 31 | 19 - 33 |
| XL | 77 - 90 | 21 - 36 | 22 - 38 |
Conforms to your dog’s chest for a custom fit. Ergonomic EVA foam chest plate. Easy to adjust straps, creates a snug, secure fit. Reflective stitching provides enhanced nighttime visibility. Sturdy clasps make putting it on fast and easy. The rust-proof welded D-ring keeps your dog attached to the leash. Seat Belt Car Restraint INCLUDED.