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).

Small

• Back Length: 12"
• Chest: 16.5" (Most Important)
• Neck: 13"

Medium

• Back Length: 15.5"
• Chest: 21" (Most Important)
• Neck: 16"

Large

• Back Length: 20"
• Chest: 25" (Most Important)
• Neck: 18"

X-Large

• Back Length: 25"
• Chest: 30" (Most Important)
• Neck: 22"