How to Measure Your Dog

Proper fit is the difference between gear that performs and gear that fails. Two measurements. Five minutes.

Quick Reference

If you already have your dog's chest girth measurement, find the right size here.

XS 14–22"
S 17–26"
M 21–32"
L 26–38"

Chest girth is the primary fit determinant. If you are between sizes, size up.

Breed Starting Points

Use these as a starting point only. Individual dogs within a breed can vary significantly. Always measure.

XS

Chihuahua, Miniature Dachshund, Yorkshire Terrier, Toy Poodle, Papillon, Italian Greyhound

S

Beagle, Corgi, French Bulldog, Miniature Schnauzer, Shiba Inu, Cocker Spaniel, Jack Russell Terrier

M

Border Collie, Australian Shepherd, English Springer Spaniel, Standard Schnauzer, Vizsla

L

Labrador Retriever, Golden Retriever, Akita, Weimaraner, Doberman, Malamute

How to Measure

You need a soft measuring tape or a length of cord you can measure against a ruler. Two measurements determine fit.

1

Chest Girth

The most important measurement

Measure around the widest part of your dog's ribcage, just behind the front legs. Keep the tape snug but not tight-you should be able to slip two fingers underneath.

Tip: If your dog has a deep chest (like a Greyhound or Doberman), measure at the deepest point.

2

Back Length

For checking coverage

Measure from the base of the neck (where the collar sits) to the base of the tail. Keep your dog standing naturally-not stretched out or hunched.

Tip: For our style of cut, the jacket will cover most of this length plus wrap under the belly.

Size Chart

All measurements in inches. Chest girth determines size selection.

Size Chest Girth Back Length Approx. Weight Range
XS 14–22" 10–14" 8–20 lbs
S 17–26" 14–18" 15–30 lbs
M 21–32" 18–22" 25–60 lbs
L 26–38" 22–26" 50–100 lbs

Weight is a rough reference only. A muscular 45 lb dog and a lean 45 lb dog can differ by two sizes. Always measure.

Fit Notes

Between Sizes?

Go up. Our gear is designed to layer, and a slightly roomier fit won't affect performance. Too tight restricts movement and can cause chafing on long days.

Deep-Chested Breeds

Greyhounds, Dobermans, Whippets, and similar breeds often need to size up for chest girth even if their weight suggests smaller. Prioritize the chest measurement.

Barrel-Chested Breeds

Bulldogs, Pugs, and similar breeds may need a larger size for girth but have shorter backs. Our adjustable closures help accommodate this-size for the chest.

Puppies

Measure your puppy as they are now. If they're still growing, consider waiting until they've reached adult size, or accept that you may need to size up in a few months.

Layering

If you're buying a shell to go over our fleece or puffy, all three products are designed to work together in the same size. No need to size up for layering.

Proper Fit Check

When fitted correctly, you should be able to slide two fingers under any strap or closure. Your dog should move freely-watch for any restriction in their gait.

Need a Second Opinion

Send us your dog's chest girth and back length measurements along with a photo, and we will recommend the right size.

Get a Fit Recommendation