| Size | Back length (cm) | Chest circumference (cm) | Estimated pet weight (kg) |
| XS | 22 | 32 | 0.5-1.0 |
| S | 25 | 37 | 1.5-2.5 |
| M | 30 | 42 | 2.5-4.0 |
| L | 35 | 47 | 4.0-5.5 |
| XL | 38 | 52 | 5.5-7.5 |
| XXL | 42 | 57 | 7.5-10.0 |
*Due to manual measurement, there may be minor discrepancies. The colour of the actual product may vary slightly
