Size guide

Measure your pet standing. Two numbers matter: chest girth (widest part behind the front legs) and back length (base of neck to base of tail). When between sizes, size up.

Size	Chest (in / cm)	Back (in / cm)	Typical breeds
XS	11–13 / 28–33	8 / 20	Chihuahua, Yorkie, kittens
S	13–15 / 33–38	10 / 25	Pomeranian, Maltese, cats
M	15–18 / 38–46	12 / 30	Pug, French Bulldog, Shih Tzu
L	18–22 / 46–56	14 / 35	Corgi, Beagle, Cocker Spaniel
XL	22–26 / 56–66	17 / 43	Border Collie, Bulldog
2XL	26–30 / 66–76	20 / 50	Labrador, Golden Retriever, Husky

Still unsure? Email a photo and your pet's measurements to support@cosmently.com and we'll pick the size for you.