πΆ 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 youβre a taller human, we recommend sizing up for comfort.
| Size |
Length (in) |
Length (cm) |
| XS |
9β12 |
23β30 |
| S |
13β16 |
33β41 |
| M |
17β19 |
43β48 |
| L |
20β22 |
51β56 |
| XL |
23β25 |
58β64 |
| XXL |
26β29 |
66β74 |
βοΈ 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 |
π Tip: When in doubt between sizes, go one size up for extra room and comfort.