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Harmonia No Pull 2 Ring Harness
The Italian-made two-ring harness that gives you a front no-pull ring for training and a back ring for relaxed walks — gentle control without choking, pinching, or pain.
40% Off
Limited-time offer: use code at checkout to save 40% on the Harmonia No Pull Harness.
Color Black
Size View the size chart first
M
23–26"
L
25–30"
XL
28–35"
XXL
31–43"
Measured around the chest, behind the front legs.
Between two sizes? Size up.
Choose your setup
Best value
Complete No-Pull Setup
$154.99$169.98
Harmonia + Double Handle Leash
- Matching double-handle leash included
- Free U.S. shipping (clears $150)
- Close control for strong pullers
- Handmade in Italy
Leash color Black
Harness only
$114.99
Add the leash to save $15 + unlock free shipping.
- Harmonia No Pull 2 Ring Harness
- Handmade in Italy
Select a size to see the chest range it fits. The Harmonia should sit snug, not tight. Between sizes? Choose the larger.
Handmade in Italy since 2007 · 100,000+ customers · 100% hypoallergenic · Free U.S. shipping over $150
On & Off in Seconds
On in seconds. Off in one click.
No wrestling, no stepping into leg holes, no fighting your dog. The Harmonia goes over the head and clicks once. Most owners have it on before their dog even notices.
- 1Slip the loop over your dog's head.
- 2Click the single side buckle shut.
- 3Clip the leash to the front ring to train, the back ring to relax, and go.
Watch · 0:41
2007
Handmade in Italy
100,000+
Customers served
100%
Hypoallergenic
4.7★
Average rating
The Two-Ring System
Two rings. One front to train, one back to relax.
Most "no-pull" tools rely on discomfort. The Harmonia gives you a front ring and a back ring, so you can guide a strong puller or let a calm dog range — all from the same harness, all off the throat.
01
Front ring redirects the pull
Clip to the chest ring and a forward lunge turns your dog gently back toward you, instead of letting them lean into the leash.
02
Even squeeze, never a pinch
The body sits over the shoulders and rib cage, away from the throat, trachea, and spine. Pressure is firm and even, never sharp.
03
Back ring for relaxed walks
Once your dog has learned to walk with you, move the leash to the back ring for easy, low-pressure strolls.
A prong collar punishes. A head halter restrains. The Harmonia guides.
Our Story
Three bridges.
Three bridges.
One Italian workshop.
Tre Ponti has been making dog harnesses in Italy since 2007. Every Harmonia is built from a double-layered technical material that's smooth, flexible, and lightweight yet strong, hypoallergenic and impermeable, finished with precise hardware and the two-ring system refined over years of real walks.
This is not a $30 harness reboxed under five different brand names. The material is tougher, the stitching is tighter, and the fit holds its shape after thousands of walks.
It's the one owners reach for when nothing else has worked.
What It's Made Of
Built with passion, from the inside out.
The Harmonia body is a double-layered, flexible technical material with a polyester web layer sealed between the two faces. No leather, no filler, just a shell engineered to flex, breathe, and hold its shape.
Smooth & flexibleMoves with your dog, never stiff or scratchy.
Lightweight yet strongBarely-there weight that still holds a hard puller.
HypoallergenicSkin-safe for sensitive dogs. 100% hypoallergenic.
ImpermeableShrugs off rain, mud, and lake days, then wipes clean.
Component breakdown
| Outer shell | Double-layered technical material with a polyester web core |
| Attachment rings | Two — front (no-pull) and back, stainless-steel coated |
| Reflective trim | 35% cotton / 65% polyester |
| Buckles | Acetal copolymer |
| Under-chest straps | Polypropylene |
Find Your Fit
Get the size right the first time.
Harmonia sizing runs by chest measurement, not weight. Grab a soft tape and measure around the widest part of the chest, just behind the front legs, and match it to the chart below.
Between two sizes? Size up. The most common sizing exchange is a harness ordered too snug. A slightly roomier fit is easy to dial in with the adjustable girth band.
Still unsure? Call 800-556-4994 or email info@trepontiusa.com and we'll size your dog with you.
Built for Pullers
Made for the movers, pullers, and explorers.
This isn't a starter harness. It's what you reach for when the Lab wants to charge ahead, when the Shepherd lunges at every squirrel, and when the rescue Pit has you bracing on every walk. Clip the front ring to train, the back ring to enjoy the walk.
The Difference
Why owners switch to the Harmonia.
| Method | How it works | Effect on your dog |
|---|---|---|
| Prong collar | Metal points pinch the neck when the dog pulls | Punishes |
| Head halter | Pulls the head sideways to steer | Restrains, many dogs fight it |
| Cheap "no-pull" harness | Single front clip that twists the shoulders | Restricts natural movement |
| Harmonia 2 ring | Front ring redirects the pull, back ring for relaxed walks, even pressure off the throat | Guides, then sets free |
Complete the Setup
The setup built for strong dogs.
Pair the Harmonia with the Tre Ponti Double Handle Leash. The padded second handle sits near the clip, so you can reel your dog in close the instant they lunge, then let them range on the long handle when it's calm. Clip it to the front ring while you train, the back ring once they've settled.
$154.99$169.98Save $15
Harmonia Harness + Double Handle Leash · ships free
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Questions
Good to know.
Sizing help, the two-ring system, and care. Still stuck? Email us or call 800-556-4994.
The Harmonia has two leash attachment rings: a front ring on the chest and a back ring between the shoulders. Clip the leash to the front ring to gently redirect a dog that pulls, and switch to the back ring for relaxed, low-pressure walks once they've learned to walk with you.
Measure around the widest part of your dog's chest, just behind the front legs, and match it to the size chart. Smaller dogs: measure 1" behind the legs. Medium and large dogs: 1½ to 2" behind. If your dog lands between two sizes, order the larger one.
Size up. The Harmonia should sit snug, not tight, and the adjustable girth band lets you bring a slightly roomier size in for a precise fit. A too-snug harness is the most common reason for an exchange, so the larger size is the safer call.
No. The body sits over the shoulders and chest, away from the throat, trachea, and spine. The front ring redirects a pull with a gentle, even pressure rather than a sharp correction, and the back ring keeps relaxed walks completely low-pressure. It guides rather than corrects with pain.
A prong collar pinches the neck and a head halter steers the head, both of which many dogs resist. The Harmonia works across the body: the front ring turns a forward lunge gently back toward you, and the back ring lets a settled dog range freely. That clear, painless feedback is what teaches a dog to walk without pulling.
The Harmonia is a training tool, not a magic switch. Used with the front ring and consistent, calm walking, it sharply reduces pulling for most strong dogs, often within the first few walks. Once they've settled, move the leash to the back ring for everyday walks.
It's built for medium and large dogs and strong pullers: Labs, Shepherds, Boxers, Mastiffs, and Pit mixes among them. Fit is based on chest measurement rather than breed, so check the size chart for your dog's exact chest size.
Slip it over your dog's head, then click the single side buckle closed. Adjust the girth band so the harness is snug but you can still fit two fingers underneath. The whole process takes a few seconds once it's dialed in.
We offer free exchanges — reach out to our team at 800-556-4994 or info@trepontiusa.com and we'll swap it for the right size at no cost. Please note that all sales are final, so we don't offer returns or refunds, but we're always happy to exchange for a better fit.
Loved By Owners
What dog owners say
Harmonia Size Chart
Sizing is by chest measurement, not weight.
Between two sizes? Size up. Need help? Call 800-556-4994.