How To Choose a Dog Harness

Which dogs should wear a harness?

Dog harnesses are often associated with puppies and strong pullers, but the truth is harnesses benefit a wide range of dogs. Unlike collars, which concentrate pressure on a narrow area of the neck, harnesses distribute it across the chest and shoulders. This reduces strain on the neck in a dog who pulls and improves comfort during everyday walks, training sessions and longer outings.

Harnesses are especially helpful for dogs with unique physical needs or behaviors, but they are also an excellent option for well-trained dogs whose pet parents want extra control and added safety features. Because harnesses offer multiple points of contact, they create a more secure connection between you and your dog and are less likely to slip off during sudden movements or distractions. Below we have “harnessed” all the need-to-know details when it comes to choosing a dog harness.

Dogs who benefit most from harnesses

• Brachycephalic breeds: Those breeds with “squished” faces are called brachycephalic, or brachy. They include Bulldogs, French Bulldogs and Pugs. Their broad heads and short necks make collars easier to slip off, and pulling on a collar can worsen breathing issues
• Puppies: Adjustable harnesses accommodate growth and help evenly distribute pressure
• Senior dogs: Harnesses are easier on aging joints and reduce neck strain
• Dogs who pull: Harnesses help prevent neck injuries caused by repeated pulling
• Dogs with mobility or breathing challenges: Harnesses made for mobility can provide better support and control when you’re both on the move and reduce strain on the airway for dogs who pull

Why a harness is more secure than a collar

There are 3 key reasons why a harness is a great option during walks, especially for a dog who tends to pull on their leash:

1. Multiple contact points across the body (similar to when a person wears a backpack instead of a shoulder purse)
2. Better pressure distribution
3. Reduced risk of escape during walks: It is MUCH more difficult for a pup to wiggle out of a harness than a collar.

Types of dog harnesses

While we know you want your dog to be stylin’, choosing the right harness is about more than just color and pattern. It starts with understanding the different styles, closure designs and leash attachment points available.

Each harness type serves a slightly different purpose depending on your dog’s size, behavior and comfort level. No matter which harness style you choose—front-clip, back-clip, no-pull or dual-clip—the fit should never interfere with your dog’s shoulder structure. Many high-quality options are available through trusted pet retailers like Petco, which carries harnesses for training, casual walks and specialty needs. We will present you with multiple options as well as a recommended overall pick if you have some “analysis paralysis” from all the choices!

BTW, if you are looking for fashionable options, Petco can help coordinate your pup’s collar and harness with sets that set you up for success!

Front-clip, back-clip and dual-clip harnesses

A key component of the training harness is how it attaches/closes.

Front-clip harness

• Helps discourage pulling
• Redirects forward motion
• Clip sits under the chest

Back-clip harness

• Best for well-trained dogs
• Easy to clip and go
• Comfortable for relaxed walks

Dual-clip harness

• Offers training flexibility
• Front clip for control
• Back clip for everyday use

No-pull harness

• A variation of the front-clip design
• Uses a front D-ring that tightens slightly when pulled
• Helpful for large dogs and those walked by children, seniors and handlers with mobility limitations

Over-the-head vs. step-in harnesses

Another choice you have when choosing a dog harness is between ones your dog steps into (often with help from you) and those that slip over the head.

Over-the-head harness

• Slips over the neck and fastens around the torso
• Common and widely available

Step-in harness

• Dog steps into loops and the harness clips at the back
• Ideal for dogs who are sensitive around their head or ears, escape artists and dogs who dislike overhead gear

Overall pick: the Y harness

If you’re looking for a well-rounded option that works for most dogs, a Y-shaped dog harness is a strong overall pick, and here’s, ahem, why:

A Y harness forms a “Y” across the dog’s chest, allowing the shoulder blades and front legs to move freely. Y harnesses are also available in many styles and materials, blending fashion and function.

Choose a comfortable harness material

The material of a dog harness directly affects comfort, durability and breathability. Choosing the right option helps prevent rubbing, overheating and early wear, especially for dogs who walk daily, spend significant time outdoors and even swim. This step is a core part of how to choose a dog harness because even the best design can fail if the material does not suit your dog’s lifestyle.

Common dog harness materials

Nylon

• Lightweight and affordable
• Durable for everyday walks
• Less breathable and may trap heat, especially in warm weather

Leather

• Durable
• Classic yet stylish appearance
• Requires regular maintenance and cleaning to stay supple

Mesh

• Lightweight and breathable
• Helps keep dogs cool
• Less durable and usually only lightly padded

Neoprene

• Soft padding and water-resistant
• Ideal for dogs who love to swim or live in rainy climates
• Can trap heat and moisture, especially if worn too long

Many harnesses combine materials to balance comfort and strength. For example, nylon harnesses with mesh lining or neoprene padding offer durability without sacrificing comfort. It’s a good idea to rotate harnesses, especially if they get wet or dirty; wearing a dirty or damp harness can lead to both a smelly harness and skin conditions. Petco carries a wide range of harness styles and materials, making it easy to compare options in person or online based on your dog’s needs.

Reflective and visibility features

Visibility is an often overlooked but critical part of harness selection. Dogs are harder for drivers and cyclists to see in low light, which increases the risk during daily walks.

Reflective features help your dog stand out during:

• Early morning walks
• Evening strolls
• Nighttime potty breaks

Common visibility options include:

• Reflective stitching or panels built into the harness
• LED harnesses that emit light
• Reflective tape add-ons for existing harnesses

These features do not affect comfort but dramatically improve safety. Many modern harnesses include subtle reflective accents that remain effective without being bulky. Petco offers reflective and LED harness options designed for visibility without sacrificing fit or comfort.

How to properly fit a dog harness

A proper fit is essential for safety, comfort and control. Even the best harness can cause issues if it is too loose or too tight.

How to measure your dog

While your dog is standing, use a soft measuring tape to get proper measurements. If you only have a ruler, you can use a piece of string, then measure that with the ruler.

• Measure the base of the neck where it meets the shoulders
• Measure the widest part of the chest just behind the front legs

How to adjust the harness

Most harnesses have multiple adjustment points for a custom fit; take advantage of those to maximize comfort and safety.

• Start slightly loose
• Gradually tighten until the harness is snug but comfortable

Proper fit checklist

• Snug but not tight
• Two fingers should fit underneath with gentle pressure
• No rubbing or chafing
• Legs move freely
• Harness cannot slip over the head
• Closures and buckles feel secure

Signs a harness doesn’t fit correctly

• Chafing or hair loss
• Restricted movement
• Ability to back out of the harness
• Gaping or shifting while walking

Trying on harnesses in store or ordering adjustable styles from Petco can help ensure the best possible fit as your dog grows or changes weight.

Harness safety tips

Before heading out, always check that the harness is secure and comfortable. A few quick steps can help prevent accidents and discomfort.

• Test movement and mobility before walks
• Gently pull in different directions to check security
• Recheck fit after grooming or weight changes
• Inspect for rubbing points after longer walks
• Replace worn or damaged harnesses promptly

Harnesses should feel like a supportive tool, not a restriction. Regular checks help keep walks safe and enjoyable. Just like collars, harnesses should never be left on a dog 24/7 and should be removed for safety when your dog is unsupervised. Even a well-fitted and clean harness can cause bacteria buildup or coat rub if worn too long, so routinely check the condition of the harness and your dog’s skin where contact is made.

How to clean dog harnesses

Routine cleaning extends the life of your dog’s harness and helps it stay comfortable.

General care tips

• Inspect closures, buckles and hardware regularly
• Remove fur and debris from Velcro
• Check for fraying or cracking

Cleaning by material

Leather

• Wipe with damp cloth
• Clean with water, vinegar and baby soap solution; many leather cleaners have a fragrance, which you don’t want
• Condition regularly

Nylon and neoprene

• Hand-wash with mild detergent
• Soak, rinse and air-dry

Many Petco harnesses include care instructions to help maintain performance and fit over time.

Takeaways

A dog harness offers better pressure distribution and security than a collar. Many dogs benefit from harnesses, including puppies, seniors, brachycephalic breeds and strong pullers. Choosing the right style, material and fit improves comfort, control and safety. Regular cleaning and fit checks help extend the life of your harness and ensure every walk stays enjoyable.