Size Guide

Getting the right fit is everything. Here's how to measure your dog and find their perfect size.

Quick Size Finder

Know your dog's chest girth? Find their size instantly:

XS 14–17"
S 17–21"
M 21–26"
L 26–32"

Chest girth is the most important measurement. When in doubt, go up a size.

Breed Examples

These are starting points—always measure your individual dog, as breed sizes vary widely.

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, Boxer, Standard Poodle, Weimaraner, Doberman, Husky

How to Measure Your Dog

Grab a soft measuring tape (or a string you can measure afterward). You'll need two measurements:

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 horse-coat style cut, the jacket will cover most of this length plus wrap under the belly.

Size Chart

All measurements in inches. Chest girth is the primary fit determinant.

Size Chest Girth Back Length Typical Weight
XS 14–17" 10–12" 5–12 lbs
S 17–21" 12–15" 12–25 lbs
M 21–26" 15–18" 25–50 lbs
L 26–32" 18–22" 50–80 lbs

Weight is provided as a general reference only. Always measure—a muscular 45lb dog and a lean 45lb dog can be very different sizes.

Fit Tips

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.

Still Not Sure?

We're happy to help. Send us your dog's measurements (and a photo, we love dog photos!) and we'll recommend the best size.

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