| Harness size | Chest circumference | Weight of the dog |
|---|---|---|
| Baby1 | 29 – 36 cm / 11.5 – 14 in | 0.8 – 3 kg / 2 – 6.5 lbs |
| Baby2 | 33 – 45 cm / 13 – 17.5 in | 2 – 5 kg / 4.5 – 11 lbs |
| Mini-Mini | 40 – 53 cm / 15.5 – 20.5 in | 4 – 7 kg / 9 – 15.5 lbs |
| Mini | 49 – 67 cm / 20 – 26.5 in | 7 – 15 kg / 15.5 – 33 lbs |
| 0 | 58 – 76 cm / 23 – 30 in | 14 – 25 kg / 31 – 55 lbs |
| 1 | 63 – 85 cm / 26 – 33.5 in | 23 – 30 kg / 50.5 – 66 lbs |
| 2 | 71 – 96 cm / 28 – 37.5 in | 28 – 40 kg / 61.5 – 88 lbs |
| 3 | 82 – 115 cm / 32.5 – 46.5 in | 40 – 70 kg / 88 – 154 lbs |
| 4 | 96 – 138 cm / 38 – 54.5 in | 70 – 90 kg / 154 – 198 lbs |