| XS | 2-11 | Italian Greyhound, Maltese, Chihuahua, Miniature Pinscher, Papillon, Pekingese, Pomeranian, Yorkshire Terrier, Toy Aussie, | |
| S | 12-35 | Mini Australian Shepherd, Beagle, Corgi, French Bulldog, Cocker Spaniel, Dachshund, Boston Terrier, Miniature Schnauzer, Pug, Shih Tzu, Mini Heeler | 20 inches |
| M | 35-50 | Border Collie, Australian Shepherd, Australian Cattle Dog, Heelers, Basset Hound, Greyhounds, Labrador Retriever, Siberian Husky | 24 inches |
| L | 50-120 | Bull Mastiff, Great Dane, Great Pyrenees, Mastiff, Newfoundland, Rottweiler, Saint Bernard, Irish Wolfhound, Siberian Husky | 29 inches |
| XL | 100+ lbs | Mastiff, Cane Corso, Great Dane, Great Pyrenees, Newfoundland, Saint Bernard, Bernese Mountain Dog, Siberian Husky | |
