The following measurements are the dimensions of the actual product, not of the pet they fit. After measuring your pet, make sure all measurements fit within the following dimensions (with a little room to spare in the chest and neck).
XX-Small- Chest: 10" (Most Important)
- Neck: 7"
X-Small- Chest: 12" (Most Important)
- Neck: 8"
Small- Chest: 14" (Most Important)
- Neck: 11"
Medium- Chest: 17" (Most Important)
- Neck: 12"
Large- Chest: 22" (Most Important)
- Neck: 15"
X-Large- Chest: 24" (Most Important)
- Neck: 18"
XX-Large- Chest: 32" (Most Important)
- Neck: 20"
XXX-Large- Chest: 40" (Most Important)
- Neck: 24"
