Size Chart harness ACTIVE
| Size | Neck circumference (A) | Chest circumference (B) | Tape Width |
| S | 21-25 cm = 8.3-9.8" | 30-35 cm = 11.28-13.8" | 2 cm = 0.8" |
| M | 31-35 cm = 12.2-13,8" | 35-50 cm = 13.8-19.7" | 2 cm = 0.8" |
| L | 33-45 cm = 13.0-17,7" | 44-65 cm = 17.3-25.6" | 2 cm = 0.8" |
| XL | 45-65 cm = 17.7-25.6" | 60-95 cm = 23.6-37.4" | 2 cm = 0.8" |