* Based on the girth of the trunk. SIZE Neck girth Breast girth Body length XS 7.1" 11.4" 8.3" S 7.9" 13.4" 9.4" M 9.4" 15.7" 10.6" L 11.4" 18.9" 11.8"

HOW TO MEASURE FOR PET CLOTHING:

Measure neck girth, chest and length as shown in the illustration.
Always round up to the next larger size if the measurement is near or over the range maximum in the smaller size.
This is particularly true for coats and jackets since there is no stretch in those materials.
Also round up to the next larger size if your pet has a thick coat, broader chest, or wider underside.