FurPick · brand sizing
Julius-K9 harness sizing
Julius-K9’s IDC Powerharness covers chest girths from 29cm to 138cm across 9 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 |
|---|---|---|
| Baby 1 | 29–36 cm | 0.8–3 kg |
| Baby 2 | 33–45 cm | 2–5 kg |
| Mini-Mini | 40–53 cm | 4–7 kg |
| Mini | 49–67 cm | 7–15 kg |
| 0 | 58–76 cm | 14–25 kg |
| 1 | 63–85 cm | 23–30 kg |
| 2 | 71–96 cm | 28–40 kg |
| 3 | 82–115 cm | 40–70 kg |
| 4 | 96–138 cm | 70–90 kg |
Taken from Julius-K9’s own chart, checked 2026-08-19.
What Julius-K9 calls the same dog other brands would
Letter sizes do not travel between brands. A dog measuring 84cm around the chest takes Julius-K9 1, and the same dog is:
If your dog measures between two sizes
Julius-K9’s ranges overlap on purpose, so a measurement landing in two of them is normal rather than a mistake. What decides it is where inside each range you sit: near the bottom the straps run near their tightest, near the top there is little adjustment left and a growing dog will outgrow it. The size finder shows that position for every brand at once.