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).

X-Small

• Back Length: 8.5″
• Chest: 13″ (Most Important)
• Neck: 8″

Small

• Back Length: 10″
• Chest: 16″ (Most Important)
• Neck: 12″

Medium

• Back Length: 12″
• Chest: 20″ (Most Important)
• Neck: 14″

Large

• Back Length: 16″
• Chest: 22″ (Most Important)
• Neck: 18″

X-Large

• Back Length: 22″
• Chest: 27″ (Most Important)
• Neck: 22″

XX-Large

• Back Length: 27″
• Chest: 36″ (Most Important)
• Neck: 27″

3X-Large

• Back Length: 33″
• Chest: 40″ (Most Important)
• Neck: 28″