š¶ Find the Perfect Fit
Use this chart to measure your pup from the collar to the base of the tail to find the right size.
If your dog has long legs, a wider chest, or youāre a taller human, we recommend sizing up for comfort.
| Size |
Length (in) |
Length (cm) |
| XS |
9ā12 |
23ā30 |
| S |
13ā16 |
33ā41 |
| M |
17ā19 |
43ā48 |
| L |
20ā22 |
51ā56 |
| XL |
23ā25 |
58ā64 |
| XXL |
26ā29 |
66ā74 |
āļø Weight Limits by Model
| Model |
Weight Limit |
| Trainer |
up to 15 lbs |
| Air 2 |
up to 25 lbs |
| Plus 2 |
up to 35 lbs |
| Urban 3 |
up to 35 lbs |
| K9 Knavigate |
up to 50 lbs |
| Kolossus |
up to 80 lbs |
š Tip: When in doubt between sizes, go one size up for extra room and comfort.