| Size | Front Leg Length | Weight | Breed Examples (General Reference Only) | ||
| IN | CM | LB | KG | ||
| S | 6-8 | 15.2-20.3 | 10-15 | 4.5-6.8 | Cocker Spaniel, Pekingese, Maltese |
| M | 8-10 | 20.3-25.4 | 15-20 | 6.8-9.1 | Beagle, Miniature Schnauzer, Shih-Tzu |
| L | 10-12 | 25.4-30.5 | 20+ | 9.1+ | Cockapoo, Border Collie, Boston Terrier |
| XL | 12-14 | 30.5-35.6 | 20-65 | 9.1-29.5 | Golden Retriever, Boxer, Old English Sheepdog |