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Forza No Pull Harness
The Italian-made martingale harness that calms strong pullers by working with your dog's body, never against it.
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
$139.99$154.98
Forza + Double Handle Leash
- Matching double-handle leash included
- Free U.S. shipping
- Close control for strong pullers
- Handmade in Italy
Leash color Black
Harness only
$99.99
Add the leash to save $15 + unlock free shipping.
- Forza No Pull Harness
- Handmade in Italy
Select a size to see the chest range it fits. The Forza 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 Forza 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.
- 3Adjust the girth band, clip the leash, and go.
Watch · 0:14
2007
Handmade in Italy
100,000+
Customers served
100%
Hypoallergenic
2,000+
Customer reviews
The Mechanism
Designed to work with your dog, not against them.
Most "no-pull" tools rely on discomfort. The Forza uses a martingale system that teaches through clear, gentle feedback.
01
Sits over the shoulders
The martingale loop rests across the shoulders and chest, away from the throat, trachea, and spine.
02
Gentle squeeze on the pull
When your dog pulls, the loop tightens into an even squeeze around the rib cage. Firm, never sharp.
03
Releases when they stop
Pressure comes off the moment they ease up. That clear on-off feedback is how dogs learn fastest.
A prong collar punishes. A head halter restrains. The Forza teaches.
Our Story
Three bridges.
Three bridges.
One Italian workshop.
Tre Ponti has been making dog harnesses in Italy since 2007. Every Forza is built from a double-layered technical material that's smooth, flexible, and lightweight yet strong, hypoallergenic and impermeable, finished with precise hardware and a martingale 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 Forza 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 |
| Reflective trim | 35% cotton / 65% polyester |
| Metal rings | Stainless-steel coated |
| Buckles | Acetal copolymer |
| Under-chest straps | Polypropylene |
Find Your Fit
Get the size right the first time.
Forza 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.
Smaller dogs: measure 1" behind the front legs. Medium and large dogs: measure 1½ to 2" behind the front legs.
| Size | Chest | May fit |
|---|---|---|
| M | 23"–26" | Spaniels, Border Collies |
| L | 25"–30" | Labs, Aussies, Boxers |
| XL | 28"–35" | Shepherds, Pit mixes |
| XXL | 31"–43" | Mastiffs, big Shepherds |
Breeds shown are a rough size guide only. Every dog is built differently, so always measure your dog's chest. Breed is not a guarantee of fit.
Between two sizes? Size up. The most common sizing return 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.
Measure here — around the chest
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.
The Difference
Why owners switch to the Forza.
| 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 | Front clip that twists the shoulders | Restricts natural movement |
| Forza martingale | Even squeeze over the shoulders, off the throat, releases on stop | Teaches, then releases |
Complete the Setup
The setup built for strong dogs.
Pair the Forza 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.
$139.99$154.98Save $15
Forza Harness + Double Handle Leash · ships free
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Questions
Good to know.
Sizing help, mechanism, and care. Still stuck? Email us or call 800-556-4994.
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 Forza 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 loop sits over the shoulders and chest, away from the throat, trachea, and spine. When your dog pulls it produces a gentle, even squeeze around the rib cage, then releases the moment they stop. 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 Forza works across the body with pressure that comes on when your dog pulls and off when they stop. That clear feedback is what teaches the dog to walk without pulling.
The Forza is a training tool, not a magic switch. Paired with consistent, calm walking it sharply reduces pulling for most strong dogs, often on the first few walks. The clearer and more consistent you are, the faster your dog learns.
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.
Reach out to our team at 800-556-4994 or info@trepontiusa.com and we'll help you get into the correct size. [Confirm exact exchange/return terms with client before publishing.]
Loved By Owners
What dog owners say
Forza Size Chart
Sizing is by chest measurement, not weight.
Smaller dogs: measure 1" behind the front legs. Medium and large dogs: measure 1½ to 2" behind the front legs.
| Size | Chest |
|---|---|
| M | 23"–26" |
| L | 25"–30" |
| XL | 28"–35" |
| XXL | 31"–43" |
Between two sizes? Size up. Need help? Call 800-556-4994.