Accurate Fit For Dogs & Cats

DOG & CAT SIZE GUIDE

Find the ideal fit for your dog or cat. From adventurous leash-trained felines and petite puppies to larger companions, our ergonomic harnesses and collars feature micro-adjustable points for zero-choke comfort and secure safety.

Dogs & Cats • Step-In Comfort Harness

Dog & Cat Harness Size Guide

Ergonomic step-in harness with 4 micro-adjustable points for an escape-resistant, tailored fit.

Size Neck Chest
XXS 24–32 28–38
XS 29–36 36–48
S 35–44 41–54
M 39–51 46–61
L 42–56 57–83
Pet Fit Tip: Sizes XXS and XS feature ultra-lightweight chest straps specifically engineered for cats, kittens, and small dogs to prevent backing out while safeguarding sensitive tracheas.
Master Sizing Guide

How To Accurately Measure Your Dog or Cat

Use a flexible tape measure or piece of string before choosing your harness or collar size.

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1. Measure The Lower Neck (Dogs & Cats)

Measure around the base of your pet’s neck where a collar naturally rests. For cats or thick-coated dogs, gently part the fur so the tape rests gently against the coat.

Zero windpipe pressure — maintains unhindered airflow
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2. Measure The Chest Girth (Dogs & Cats)

Measure around the widest portion of your dog or cat’s ribcage, approximately two fingers (1.5–2 inches) behind their front legs.

Prevents backing-out escapes while eliminating underarm chafing

The Two-Finger Fit Rule (Dogs & Cats)

Whether fitting a dog or a cat, always ensure you can slide two flat fingers between the gear and your pet’s coat. This guarantees proper circulation, allows effortless breathing, and keeps adventurous cats or wiggly pups from wriggling out.

100% Pet Fit Guarantee

Still between sizes? We're here to help.

Not sure whether to choose Size XXS, XS, or S for your cat or dog? Send us a quick photo with your pet’s breed and weight, and our fit specialists will recommend the exact size.