How to Choose the Right Harness for Your Dog

A comfortable walk begins with understanding your dog.

Every dog is shaped differently. Their size, proportions, energy level and way of walking all influence the kind of harness that may suit them best.

The right harness should feel like a natural part of the walk. It should provide support without getting in the way, helping both you and your dog feel more comfortable and confident outside.

Why Fit Matters

A harness that is too loose may move around or allow a dog to back out. One that is too tight may rub, create pressure points or make natural movement more difficult.

A well-fitted harness should sit securely while allowing the shoulders and front legs to move freely. It can also help spread leash pressure across a broader area of the body rather than concentrating it around the neck.

The aim is simple:

Comfortable movement, reliable support and more enjoyable walks together.

Collar or Harness?

Collars and harnesses can both be useful, but they often serve different purposes.

A collar is convenient for carrying identification and may be suitable for everyday wear. However, when a lead is attached to the collar, pulling pressure is directed around the neck.

For dogs that pull, have a sensitive neck or need a little more guidance during walks, a properly fitted harness may offer a gentler and more balanced connection.

Many dogs wear a collar for identification and use a harness as the lead attachment point during walks. The best choice depends on the individual dog rather than one rule for everyone.

Different Dogs, Different Needs

Small Dogs: Lightweight Comfort

A harness for a small dog should be more than a smaller version of a standard design.

Smaller dogs often have lighter bodies and different proportions, so the weight, adjustability and placement of the straps matter.

Some toy and small breeds may also be more sensitive to pressure around the throat or more prone to tracheal problems. In these cases, reducing unnecessary pressure around the neck is especially important.

When choosing a harness for a smaller dog, look for:

• A lightweight structure that does not feel bulky
• Adjustable straps that suit the dog’s proportions
• A secure fit that helps prevent backing out
• Enough space for natural shoulder and front-leg movement
• Smooth contact areas that do not rub behind the elbows

The goal is not simply to find the smallest size available. It is to find a harness that feels considered around the dog wearing it.

Larger and Stronger Dogs: Stable Support

Larger dogs have a different set of needs.

Not every large dog pulls, but greater body weight and strength can make sudden movements harder to manage. Energetic dogs may also need more guidance when they become excited by new surroundings.

For larger or stronger dogs, look for a harness that feels stable without being restrictive.

Helpful details may include:

• Durable webbing, stitching and hardware
• A balanced fit that stays in place as the dog moves
• Secure and easy-to-use lead attachment points
• Enough adjustment for the dog’s individual shape

A front attachment may provide additional directional guidance for some dogs, while a back attachment can suit more relaxed everyday walks.

The harness should support the walk, not overpower it. Patient, positive training remains just as important as the equipment itself.

What to Look for in a Good Fit

Measure the Dog, Not Just the Breed

Dogs of the same breed can have very different proportions.

Use the measurements shown in the product size guide, usually around the neck and the widest part of the chest. Weight can be helpful, but it should not be the only factor used to choose a size.

Check the Harness in Motion

A harness may look fine while a dog is standing still but behave differently once they begin walking.

Watch how it sits when your dog turns, changes direction or moves at a quicker pace. It should remain centred without shifting excessively, and the straps should lie flat rather than twisting.

Leave Room for Natural Movement

The shoulders and front legs should be able to move freely.

Check that no part of the harness cuts across an area that affects movement or repeatedly rubs behind the elbows. A secure fit should still feel comfortable and natural.

Before Every Walk

A quick check before leaving can help keep the harness comfortable and reliable:

• Make sure every buckle is fully secured
• Check that the straps lie flat and the harness remains centred
• Confirm that your dog can move naturally
• Look for worn webbing, loose stitching or damaged hardware

Fit can change over time as puppies grow, adult dogs gain or lose weight, or coat length changes. It is worth checking the adjustment regularly rather than treating it as permanent.

Designed Around Dogs

There is no single perfect harness for every dog.

The best choice is the one that suits your dog’s body, walking style and everyday life.

At POMI, we believe thoughtful design begins with paying attention to these differences. From structure and materials to comfort and usability, every detail should have a reason for being there.

Because a walk is not only about getting somewhere.

It is about the familiar routes, the small discoveries and the connection created along the way.

Some things pull us together.
We call it The Gravity Between Us.

Find the Right Harness for Your Everyday Walk

Explore POMI harnesses designed with different bodies, walking styles and daily routines in mind.

Explore Harnesses

General Guidance Note

This article provides general guidance and is not a substitute for veterinary advice. If your dog has recurring coughing, breathing difficulties, neck pain or a diagnosed medical condition, speak to your veterinarian before choosing walking equipment.