Important Sizing Note: 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).

Petite

• Back Length: 9″
• Chest: 13″ (Most Important)
• Neck: 10″

Small

• Back Length: 11″
• Chest: 18″ (Most Important)
• Neck: 11.5″

Medium

• Back Length: 13″
• Chest: 19″ (Most Important)
• Neck: 12″

Large

• Back Length: 14.5″
• Chest: 22″ (Most Important)
• Neck: 13″

X-Large

• Back Length: 15.5″
• Chest: 25″ (Most Important)
• Neck: 15″

2X-Large

• Back Length: 16.5″
• Chest: 34″ (Most Important)
• Neck: 15″

3X-Large

• Back Length: 17″
• Chest: 41″ (Most Important)
• Neck: 19″

4X-Large

• Back Length: 18″
• Chest: 42″ (Most Important)
• Neck: 19″

5X-Large

• Back Length: 21″
• Chest: 44″ (Most Important)
• Neck: 19″