A well-fitted harness is one of the most important investments you can make for your dog's safety and comfort. Whether you're walking a boisterous Labrador through Auckland's waterfront or exploring Queenstown's trails with a small terrier, the right fit makes all the difference.
Here's our step-by-step guide to fitting a dog harness correctly — the first time.
Why Harness Fit Matters
An incorrectly fitted harness can cause chafing, restrict movement, or allow your dog to escape — none of which you want mid-walk. Veterinary behaviourists consistently recommend harnesses over collars for dogs that pull, as they distribute pressure across the chest rather than the throat, reducing the risk of tracheal damage.
What You'll Need
- A soft measuring tape
- Your dog's measurements (chest girth and neck circumference)
- Treats for positive reinforcement
Step 1: Measure Your Dog
Before fitting, take two key measurements:
- Chest girth: Measure around the widest part of your dog's ribcage, just behind the front legs
- Neck circumference: Measure around the base of the neck where a collar would sit
Always measure twice and compare to the size guide on your chosen harness. If your dog falls between sizes, size up for comfort.
Step 2: Introduce the Harness Calmly
Let your dog sniff the harness before putting it on. Reward with treats. This is especially important for dogs who are new to harnesses or anxious about being handled. Take it slow — there's no rush.
Step 3: Place the Harness Over the Head
For over-the-head style harnesses, hold the harness open and gently guide it over your dog's head so the chest plate sits flat against their sternum. Keep treats handy and stay calm and positive throughout.
Step 4: Secure the Chest and Belly Straps
Guide your dog's front legs through the leg loops (if applicable) and clip the chest or belly strap underneath. Make sure the harness sits flat with no twisting.
Step 5: Check the Fit
The golden rule: you should be able to slide two fingers comfortably under any strap. If you can fit more than two fingers, it's too loose. If you can't fit two fingers, it's too tight.
Check:
- The chest plate sits flat — not twisted or sitting to one side
- The harness doesn't restrict shoulder movement
- Nothing is rubbing behind the front legs (a common chafe point)
Step 6: Do a Test Walk
Before heading out, do a quick walk around the house. Watch for any limping, restricted movement, or signs of discomfort. A well-fitted harness should be virtually invisible to your dog once they're used to it.
Common Fitting Mistakes to Avoid
- Too loose: Your dog can back out of it — a common escape trick for clever dogs
- Too tight: Causes chafing, especially on longer walks
- Wrong size: Always measure — don't guess based on breed alone
- Chest plate sitting too high: Should sit on the sternum, not the throat
How Often Should You Check the Fit?
Check the fit every few weeks, especially for puppies who are growing quickly. Weight changes, seasonal coat thickness, and general wear can all affect how a harness sits over time.
Shop Dog Harnesses at StevieLicksx®
We stock a curated range of premium dog harnesses designed for comfort, durability, and style — with size guides on every product page. Fast NZ delivery, free shipping on orders over $200.