Every dog owner eventually asks the same question: should I walk my dog with a collar or a harness? The short answer is that for most dogs, a well-fitted harness is safer, more comfortable, and gives you better control — especially if your dog pulls. But there are exceptions, and the right gear depends on your dog's size, breed, and behaviour.
When a harness is the right choice
- Dogs that pull: Pressure on the trachea from a collar can cause long-term damage. A front-clip no-pull harness redirects pulling without choking.
- Small breeds: Chihuahuas, Yorkies, Pomeranians and other toy breeds are prone to collapsed trachea. Always walk them on a harness.
- Brachycephalic (flat-faced) breeds: Frenchies, Pugs, Bulldogs and Boston Terriers already have compromised airways. A collar pressing on the throat makes it worse.
- Puppies in training: A harness gives you more control during the pulling phase without teaching bad habits.
- Senior dogs: A support harness with a top handle helps you assist dogs with hip or mobility issues.
When a collar is fine
A flat collar is appropriate for a well-trained adult dog that walks calmly on a loose leash. Collars are also essential for ID tags and rabies tags — every dog should wear one, even if you walk on a harness. A martingale collar is a good middle ground for sighthounds or dogs that slip out of flat collars.
How to fit a harness correctly
The two-finger rule: you should be able to slide two fingers flat between the harness and your dog's body, no more. A loose harness will chafe and let your dog escape; a tight one restricts the shoulders and can cause gait problems over time. Check the fit weekly on puppies, monthly on adults.
No-pull harness styles explained
Front-clip: Leash attaches at the chest. Best for training pullers. Turns the dog toward you when they pull.
Back-clip: Leash attaches between the shoulders. Most comfortable for dogs that don't pull. Not recommended for strong pullers.
Dual-clip: Has both attachment points. Most versatile — use the front clip for training, the back clip for relaxed walks.
Our harness picks
Browse the full dog walking gear collection for no-pull harnesses, matching leashes, and reflective gear for early-morning walks. We stock padded, adjustable harnesses in sizes from XS to XXL, plus heavy-duty options for large breeds like Shepherds and Huskies.
Still not sure what fits your dog? Send us a message with your dog's breed and weight — we'll point you to the right option.