Sizing decoded June 9, 2026 2 min read
What Does XS Mean for Pets?
Chest girth 11-14 inches. Fits 5-10 lb pets — toy dogs, kittens, small cats.
Pet Apparel Sizes
| Size | Chest girth | Weight | Pets |
|---|---|---|---|
| XS | 11-14" | 5-10 lb | Chihuahua, Yorkie, kitten |
| S | 14-18" | 10-25 lb | Pug, Cavalier, small cat |
| M | 18-24" | 25-55 lb | Beagle, Cocker, Frenchie |
| L | 24-32" | 55-85 lb | Lab, Golden, Boxer |
| XL | 32-42" | 85-125 lb | GSD, Rottweiler |
FAQs
What does XS mean for pets?
Chest girth 11-14\". Fits 5-10 lb pets.
Weight or chest?
Chest is primary. Weight is secondary.
Sizes below XS?
XXS or "Tiny" for kittens / Chihuahua puppies.
Selling pet products on Shopify?
Tailor Size Guide adds chest-girth matching to every pet listing.