For the best fit, match the below dimensions to your pet's measurements as closely as possible. If your pet falls somewhere between two sizes, we advise ordering the larger of the two.
Body: Measure the base of the neck to the base of the tail. Add 2 inches for comfort.
Neck: Measure around your dog's neck leaving room for two fingers.
Chest: Most important measurement; measure your dog's chest around the widest part. Add 2 inches for comfort.
![alt text](https://img.chewy.com/is/image/catalog/156225_PT8.AC_SL400_V1547752029.jpg ""Measure Your Pet"")
| Size || Neck || Chest ||Length|
| Small ||11 inches ||16 inches ||10 inches|
| Medium || 12 inches||18 inches||12 inches|
| Large ||13 inches ||20 inches||14 inches|
| X-Large || 15 inches ||21 inches||16 inches|
| XX-Large || 16 inches|| 23 inches||18 inches|
|XXX-Large||18 inches||27 inches||20 inches|
|Big Dog X-Large||22 inches||34 inches||24 inches|
|Big Dog XX-Large||25 inches||37 inches||30 inches|