Small - Neck to Tail 11 inches x Chest 14 inches around. Breed Comparisons: Pomeranians, Toy Poodles
Medium - Neck to Tail 15 inches x Chest 17 inches around. Breed Comparisons: Pugs, Jack russels, French Bulldogs
Large - Neck to Tail 22 inches x Chest 20 inches around. Breed Comparisons: Spaniels, Corgi, Scottish Terriers
XL - Neck to Tail 28 inches x 24 in Chest around. Breed Comparisons: Collies, Bulldogs, Standard Poodle