Find Your Dog's Perfect Fit

A well-fitting collar or harness is a safety feature, not a luxury. Measure once with a soft tape (or a piece of string + a ruler), then match your dog's measurements to the charts below.

1. Wrap the tape around the base of your dog's neck (for collars) or the widest part of the chest (for harnesses).
2. Leave two fingers of slack — snug, but you should be able to slide two fingers flat under the gear.
3. Re-measure twice. Dogs wiggle. If you get two different numbers, use the larger one.
4. Between sizes? Size up for collars with adjustable buckles — or email us a photo of the tape at hello@pupbobo.com and we'll pick for you.