PetSafe harness sizing
PetSafe’s Easy Walk Harness chart lists chest girths from 30.5cm to 124.5cm across 8 sizes. Runs further up than most, which matters for giant breeds. It also uses wide size bands, so a single size covers a lot of dogs and adjustment matters more.
The full chart
| Size | Chest girth | Weight guide | Buy |
|---|---|---|---|
| Petite | 30.5–43.2 cm | up to 4.5 kg | Shop Petite → |
| Petite/Small | 33–45.7 cm | 4.5–6.8 kg | Shop Petite/Small → |
| Small | 38.1–53.3 cm | 6.8–11.3 kg | Shop Small → |
| Small/Medium | 48.3–66 cm | 9.1–13.6 kg | Shop Small/Medium → |
| Medium | 55.9–81.3 cm | 11.3–22.7 kg | Shop Medium → |
| Medium/Large | 61–86.4 cm | 18.1–29.5 kg | Shop Medium/Large → |
| Large | 68.6–101.6 cm | 29.5–43.1 kg | Shop Large → |
| Extra Large | 81.3–124.5 cm | 40.8 + kg | Shop Extra Large → |
Taken from PetSafe’s own chart, checked 2026-08-19.
This chart is the Easy Walk Harness. PetSafe make other harnesses, and a chart published for one is not automatically right for another — check the box before ordering a different model.
Other PetSafe harnesses with their own chart: PetSafe 3 in 1 (Easy Walk 3 in 1 Harness)
What PetSafe calls the same dog other brands would
Letter sizes do not travel between brands. For a chest measurement of 78cm, the finder recommends PetSafe Medium/Large using chest girth alone. Also covered by: Large, Medium. The same measurement gives these chart results:
- Julius-K9 — 1; also covered by 2
- Ruffwear — M
- Kurgo — Large; also covered by X-Large
- Blue-9 — M/L; also covered by L, M
- Rabbitgoo — XL; also covered by L
- Puppia — XL
- PetSafe 3 in 1 — Medium; also covered by Large
- Dog Friendly Co — L
- PawSafe — L; also covered by M
- Wonder Walker — Large; also covered by Medium, X-Large
- Top Paw — Large
These recommendations use chest girth alone. The size finder also considers published weight guidance when you supply weight. If you already know your dog’s PetSafe size and want it at every other brand, convert it directly — the tool opens on PetSafe and reads out every size that overlaps.
Where the size ranges meet
PetSafe has overlapping size bands. For example, Petite and Petite/Small both cover 33–43.2cm. The finder recommends the most central match by chest girth and keeps the other covering sizes visible; published weight guidance can help choose when weight is supplied.
Some size pairs also share a single endpoint: Medium / Extra Large at 81.3cm. At each of these exact measurements, both named sizes cover the chest.
Near the bottom of a size’s range, the straps run close to their tightest; near the top there is little adjustment left. The size finder shows that position and every covering alternative.