Manual measurement of 0.3cm error normal range
| size | Chest adjustment range | Suitable for dog breeds |
| sl | 33-43cm | Small dog |
| s | 43-56cm | Small and medium-sized dogs |
| m | 56-69cm | Medium and large dogs |
| l | 69-81cm | Medium and large dogs |
| xl | 81-107cm | Medium and large dogs |
