| Size | Webbing width (mm) | Chest circumference (cm) MIN | Chest circumference (cm) MAX | Breed or Type (for example, it is important to measure the chest circumference) |
| XL | 25 | 90 | 130 | Great Dane, Leonberger, Saint Bernard |
| L | 25 | 75 | 110 | German Sheperd, Weimaraner, Rottweiler, Dobermann |
| M | 25 | 70 | 90 | Golden/Labrador Retriever, Boxer |
| ML | 25 | 70 | 90 | Galgo, Greyhound |
| S | 20 | 55 | 75 | Cocker Spaniel, Beagle, French Bulldog |
| SL | 20 | 55 | 75 | Saluki |
| XS | 15 | 43 | 55 | Westie, Cavalier King Charles Spaniel |
| XSL | 15 | 43 | 55 | Whippet, Dachshund |
| XXS | 15 | 35 | 45 | Miniature Pinscher, Maltese |
| XXSL | 15 | 35 | 45 | Dachshund |
| XXXS | 15 | 30 | 40 | Yorkshire Terrier, Chihuahua |
EN 
SL