1. SMALL: Length 12″, Chest 16-20″, Neck 12-14″

Breed Examples: DACHSHUND-MINIATURE, NORFOLK TERRIER, PEKINGESE, POMERANIAN, TOY POODLE

2. MEDIUM: Length 16″, Chest 20-24″, Neck 14-16″

Breed Examples: BEAGLE, DACHSHUND, JACK RUSSELL TERRIER, LHASA-APSO, MINIATURE SCOTTIE, PUG, SCHNAUZER

3. LARGE: Length 20″, Chest 24-28″, Neck 16-20″

Breed Examples: SMALL BOXER, LABRADOR RETRIEVER, GOLDEN RETRIEVER, WEIMARANER, WHIPPET