A guide to healthy movement and the joy of pulling

Choosing a harness isn't about colour or design. It's a practical decision that affects your dog's health and movement. A well-fitting harness doesn't press anywhere, doesn't restrict the shoulders, and lets your dog pull at full power. The wrong harness can chafe your dog or harm them over time.

Let's walk through how to choose the right one.

Short or long harness? It comes down to your dog's ability to pull throughout the whole activity.

The first step is to be clear about what exactly you'll be doing with your dog. The key factor is the angle at which the towline runs from the dog to you.

Short harness (GUARD or SMART models): Suited to activities where the dog isn't pulling at full power the whole time. It's ideal for regular walks, dogtrekking, and canicross for beginners.

Musher Jeff King caused a worldwide sensation when he won the legendary Iditarod in these very short harnesses — originally meant more for leading dogs.

Long harness (RUN LONG or SIBERIAN models): Essential for disciplines with sustained, intense pulling, where the line runs horizontally or at a slight angle behind the dog. This mainly means mushing disciplines (sled dog teams), canicross (dog with a runner), bikejöring (dog with a bike), skijöring (dog with a skier), and scootering (dog with a scooter). A long harness spreads the pulling force evenly across the dog's whole body.

Anatomy and health: why the cut matters

From a veterinary standpoint, it's essential that the harness doesn't restrict the shoulder joint. If a harness doesn't fit, it presses on the shoulder with every step, which can lead to serious orthopaedic problems.

• The special construction of MANMAT harnesses ensures that even when turning sideways, the shoulder joint stays free for the paw to extend fully.
• A narrow neck for athletes: On racing harnesses, the narrowest possible neck matters.

How to check in practice whether the harness fits

When fitting, it's best to have one person hold the dog while the other checks these points:

• Around the neck: Two fingers should fit between the neck and the harness. The harness must not be too loose, so it doesn't slide onto the shoulder blades, nor too tight, so it doesn't choke the dog.
• Length of the harness: When stretched out, a long harness should end at the base of the tail.
• The rib area: The strap must run across the ribs and must not reach deep into the flanks, where it would get in the way of the dog's movement.

A material that doesn't soak up water and doesn't fray

You can also recognise a quality harness by its material. MANMAT uses 100% polypropylene, which has properties similar to synthetic silk.

• Water resistance: The fibre doesn't absorb water. In rain or snow the harness doesn't get heavy or stiff.
• Extreme durability: The materials are tested to 100,000 abrasion cycles, which guarantees a long lifespan.

The key to a properly fitting harness is to always check it while the dog is pulling and stretched out. You'll manage this best with two people.

But it all starts with choosing the right size — which brings us back to our article on how to measure your dog correctly. Measure your dog using our measuring guide, or write to us — we'll be glad to advise which model and size will fit your companion just right.

And because a well-sewn harness lasts for years, we give a 5-year warranty on our stitching. That's the difference between gear you buy once and gear you deal with every season.

In conclusion: a well-fitting harness is the best investment

Choosing a harness isn't about colour or brand. It's about letting your dog pull at full power without anything pressing on them. Once you know which discipline you do with your dog, you know the right cut — a short GUARD or SMART harness for walks, dogtrekking, and starting out with canicross; a long RUN LONG or SIBERIAN harness for mushing disciplines, canicross, bikejöring, skijöring, and scootering.

A tip from Alaska: why harnesses "grow on" in the cold

In extreme cold (below -20 °C), experienced mushers don't take the harnesses off their dogs. Even though the material doesn't absorb water into the fibre, moisture from the dog's evaporated sweat stays within its structure. As long as the harness is on the dog, body heat keeps that moisture liquid and the harness stays soft.

If you took a wet harness off in such cold, the moisture in it would freeze instantly and turn it into "ice armour" that would chafe the dog the next time it's put on.

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Write to us at dog@manmat.cz or call +420 603 596 848. We'll reply with a specific recommendation on model and size. We do this every day — for customers in the Czech Republic and abroad.

Two notes. I used British spelling (colour, recognise, orthopaedic) since manmat.eu targets a broad European market — say the word if you'd prefer American spelling and I'll switch it. And the RUN LONG / SIBERIAN model names carry over exactly as in the Czech version, so the same check applies on your end.