PUP SIZE CHART
| SIZE | LENGTH | CHEST | NECK | BREED |
| XXS | 7" - 9" (18 - 23 cm) | 12" - 14" (30.5 - 35.5 cm) | 8" - 9" (20.5 - 23 cm) | Teacup breeds, puppies |
| XS | 9" - 11" (23 - 28 cm) | 15" - 17" (38 - 43 cm) | 9" - 10" (23 - 25.5 cm) | Yorkie, Chihuahua, Toy Poodle |
| S | 11" - 13" (28 - 33 cm) | 18" - 20" (46 - 51 cm) | 11" - 12" (28 - 30.5 cm) | Maltese, Shih Tzu, Min Pin, Mini Poodle |
| M | 13" - 15" (33 - 38 cm) | 21" - 23" (53.5 - 58.5 cm) | 13" - 15" (33 - 38 cm) | Pug, Dachsund, Boston Terrier, Westie, Frenchie, Cavalier King Charles |
| L | 16" - 19" (40.5 - 48.5 cm) | 24" - 26" (61 - 66 cm) | 16" - 17" (40.5 - 43 cm) | Cocker Spaniel, Australian Shepherd, English Bulldog |
| XL | 19" - 21" (48.5 - 53.5 cm) | 27" - 29" (68.5 - 73.5 cm) | 18" - 20" (45.5 - 51 cm) | Boxer, Portuguese Water Dog, Golden Doodle |
| XXL | 22" - 24" (56 - 61 cm) | 30" - 33" (76 - 84 cm) | 20" - 21" (51 - 53.5 cm) | Golden Retriever, Labrador Retriever, Standard Poodle |
| XXXL | 25" - 28" (63.5 - 71 cm) | 34" - 37" (86.5 - 94 cm) | 22" - 25" (56 - 63.5 cm) | Akita, German Shepherd, Greyhound |