How to Measure Your Pet
📏 Back Length
Measure from the base of the neck to the base of the tail. Keep your pet standing naturally on a flat surface.
🎗️ Chest Girth
Wrap the tape measure around the widest part of the chest, just behind the front legs. Ensure it's snug but not tight.
🐕 Neck Circumference
Measure around the base of the neck where the collar sits. Leave enough room to fit two fingers comfortably.
📐 Shoulder Height
Measure from the floor to the top of the shoulder blade. Important for vests, harnesses, and boots.
Dog Sizing Chart
| Size | Weight (lbs) | Weight (kg) | Chest Girth | Back Length | Neck Circ. |
|---|---|---|---|---|---|
| XS | 5 - 15 | 2 - 7 | 14" - 20" | 12" - 16" | 10" - 13" |
| S | 15 - 30 | 7 - 14 | 20" - 26" | 16" - 21" | 13" - 17" |
| M | 30 - 50 | 14 - 23 | 26" - 32" | 21" - 26" | 17" - 21" |
| L | 50 - 75 | 23 - 34 | 32" - 38" | 26" - 31" | 21" - 25" |
| XL | 75 - 100 | 34 - 45 | 38" - 44" | 31" - 36" | 25" - 29" |
| XXL | 100+ | 45+ | 44" - 50" | 36" - 42" | 29" - 34" |
*Measurements in inches. When in doubt, size up for comfort.
Cat Sizing Chart
| Size | Weight (lbs) | Weight (kg) | Chest Girth | Back Length | Neck Circ. |
|---|---|---|---|---|---|
| XS (Kitten) | 2 - 5 | 1 - 2.5 | 8" - 11" | 7" - 10" | 7" - 9" |
| S | 5 - 8 | 2.5 - 4 | 11" - 14" | 10" - 13" | 9" - 11" |
| M | 8 - 12 | 4 - 5.5 | 14" - 17" | 13" - 16" | 11" - 13" |
| L | 12 - 16 | 5.5 - 7.5 | 17" - 20" | 16" - 19" | 13" - 15" |
| XL (Plus) | 16+ | 7.5+ | 20" - 24" | 19" - 22" | 15" - 18" |
*Cats vary greatly in body type. Always prioritize chest girth for coats and harnesses.
Fit Tips & Best Practices
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Two-Finger Rule Always ensure you can comfortably slide two fingers between the garment/harness and your pet's body.
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Check for Growth Puppies and kittens grow quickly. If your pet is still growing, choose the size that fits their expected weight in 3-6 months.
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Breed Considerations Brachycephalic breeds (bulldogs, pugs) may need longer lengths. Sighthounds (greyhounds) often require extended back measurements.
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Monitor Wear Check straps, seams, and fasteners regularly. Replace any item that shows signs of fraying or reduced elasticity.
Still Unsure About the Right Fit?
Our pet care specialists are happy to help you find the perfect size. Share your pet's details and we'll recommend the best fit.
Contact Size Support →