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: 9.5"
• Chest: 12"-15" (Most Important)
• Neck: 9"

Small

• Back Length: 11.5"
• Chest: 14"-18" (Most Important)
• Neck: 10"

Medium

• Back Length: 13.5"
• Chest: 17"-21" (Most Important)
• Neck: 12"

Large

• Back Length: 15.5"
• Chest: 21"-24" (Most Important)
• Neck: 14"

X-Large

• Back Length: 17.5"
• Chest: 22"-25" (Most Important)
• Neck: 16"