• featured image of Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Red
  • featured image of Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Red
  • featured image of Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Red
  • featured image of Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Red
  • featured image of Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Red
  • featured image of Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Red
  • featured image of Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Red
  • featured image of Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Red
  • featured image of Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Red
  • featured image of Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Red
  • featured image of Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Red
  • featured image of Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Red
  • featured image of Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Red

Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Red

€41,99 €29,49 -30%
The TRI-Harness® is designed to give dogs a safer, more comfortable walking experience without pulling, rubbing, or restricting movement. After... View Full Details
  • Anti‑Pull Control for All Breeds
  • Full‑Body Comfort & Freedom
  • Secure, Adjustable, Everyday‑Ready

Product Options

Colours: Red
Sale
Size: Select Size

Not sure? Try our Size Guide for the perfect fit

Stand out from the pack

Personalise your product (+€6,99)

Make it Theirs

Select Font:

Select Colour:

Select Icon:

Guidance & examples

Size & fit

The stitching area on our size A is limited; we advise having a maximum of 6 characters and not adding an icon.

Examples from the pack

BullyBillows Europe
BullyBillows Europe

About personalisation

Important - Creating your unique look with our bespoke stitching/engraving quality could take us up to 5 working days to complete, it's well worth the wait though.

When customising the Combat Range, the adjuster may cover part of the text. The best way to help avoid this is to choose the smallest size which will fit your dog; the adjuster will then be located at the end of the collar away from the name.

Preview images are for illustration only, text and Icons will always be centered neatly on the product. Colours and fonts may change very slightly during production.

We offer personalisation option on almost all of our Collars, Leads and Harnesses. What are the key benefits of adding personalisation to your BullyBillows gear?

1. They're unique to you and your dog.

2. If you have multiple dogs, adding your dogs name can help to distinguish which collar is for which dog.

3. Adding a phone number and Social handle in the unfortunate event of your dog getting lost, this is a very powerful way to ensure your dog can be tracked back to you.

4. If you have a working dog, nervous dog or one who just loves to jump, you can enter names such as POLICE DOG, WARNING, DO NOT PET, NERVOUS etc.

Your Dog Needs This

1.4m Swivel Combat Leash | Anti-Tangle & Secure Clip - Red

€33,99
1.4m Swivel Combat Leash | Anti-Tangle & Secure Clip - Red

The chest measurement of your dog, or the girth, is the first measurement you’ll need to take. This can be taken by placing the measuring tape around the widest part of your dog’s torso, usually just behind the front legs.

The next measurement should be taken around the lower part of your dog’s neck, simply measure the widest part at the base of the neck as this is where the harness is going to sit. This size chart is based on min-max measurements.

Size
Neck Girth
Chest Girth
Chest Length
XXS (MINI A)35cm-55cm33cm-49cm21cm-32cm
XS (MINI B)40cm-60cm40cm-58cm22cm-39cm
A43cm-64cm50cm-66cm23cm-32cm
B60cm-71cm55cm-80cm27cm-39cm
C65cm-91cm65cm-90cm28cm-40cm
D69cm-108cm70cm-108cm29cm-44cm
Size chart for Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Red
kg

Measure around the base of the neck where a collar would sit.

cm

Measure around the widest part of the chest, just behind the front legs.

cm

Measure from the base of the neck (where a collar sits) to just before the last rib.

cm
Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Red

Product description

The TRI-Harness® is designed to give dogs a safer, more comfortable walking experience without pulling, rubbing, or restricting movement. After listening to thousands of owners, we’ve combined our Mini and Standard versions into one complete size range, making it easier than ever to choose the perfect fit for your dog.

Built with a non-restrictive Y-shape, soft neoprene lining, and three strategically placed attachment points, this harness supports natural movement while giving owners full control. Whether you’re training a puppy, managing a reactive dog, or simply want a more comfortable daily harness, the TRI-Harness® delivers reliable performance for every breed.

Optimized for Every Body Type

  • Mini Series (Mini/A – Mini/B): Uses a slimmer 2.5 cm webbing, perfectly weighted for toy and small breeds.
  • Standard Series (Size A – Size D): Uses a robust 4 cm webbing, providing the necessary strength and surface area for medium to extra-large dogs

Key Features

  • Three Attachment Points: Versatile options for training, control, and everyday walking
  • Non-Restrictive Y-Frame: Ergonomic design that allows for full shoulder and joint movement.
  • Soft Neoprene Lining: Premium comfort that reduces rubbing and protects sensitive skin
  • Anti-Pull Front D-Ring: The ultimate tool for training and correcting pulling behaviour.
  • Durable Webbing: Size-specific width (2.5 cm for Mini / 4 cm for Standard) for maximum safety.
  • Secure Buckle System: High-strength fasteners for easy on/off application.

Benefits

  • Improves Lead Manners: Gently reduces pulling without causing pain.
  • Protects the Neck: Prevents dangerous pressure on the trachea and throat.
  • All-Day Comfort: Lightweight, breathable construction suitable for long hikes or city strolls.
  • Universal Fit: From Chihuahuas to Great Danes—one design, perfected for all sizes

Ideal For

  • Small Breeds & Puppies: Mini/A and Mini/B (formerly the "MINI TRI-Harness").
  • Medium to Extra-Large Breeds: Size A, B, C, and D (formerly the "Standard TRI-Harness").
  • Strong or Reactive Pullers: Provides the control needed for safer management.

Size & Fit Notes

  • Mini Series: 2.5 cm webbing width.
  • Standard Series: 4 cm webbing width.
  • Consistency: The design and functionality are identical across the range; only the webbing width is adjusted to suit the dog's power and scale.
  • Measurements: Please refer to our Universal Size Guide image for Neck, Chest Girth, and Chest Length measurements

Trademark & Copyrighted Design Rights Number: 6189802

Customer Reviews

Overall rating: 4.8 / 5 from 420 reviews.

My 13 month Golden Retriever was pulling so much until my harness arrived....it has been an instant change in the way that he now walks...it is a pleasure to walk him...fantastic harness...I recommend it to my doggy friends....many thanks for changing my life...

Maria Isabel U. 5/5 Verified

Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Red

Customer photo review of TRI-Harness® | Anti-Pull, Adjustable & Durable - Dog Trainers Choice - Red v2.0

After trying previous harnesses on our male boxer we needed something he can’t work his way out of. With the BB harnesses I can walk them with more control. I added the traffic lead for him as he is nervous so allows full control when he feels nervous. Would have got matching for them both but the purple is out of stock!

Sara H. 5/5 Verified

TRI-Harness® | Anti-Pull, Adjustable & Durable - Dog Trainers Choice - Red v2.0

Customer photo review of TRI-Harness® | Anti-Pull, Adjustable & Durable - Dog Trainers Choice - Red v2.0

We used to buy a “strong” harness that cost 4-5 times more than Bullybillows but the stitching came undone and the fabric split. We have had Bullybillows for a few years now and love how well made they are. We love the choice of design and colours. We buy the tri-harness as like the option of the front lead attachment but don’t need to use as much these say as Woody no longer pulls so much. The tri-harness is also great as Woody can be a bit of an escapologist and never had any issues with these. As you can see we walk through woods, fields etc and get covered in mud but no worries as our Bullybillows harnesses wash so easily. We have so many colour - just need an olive green and would love a tartan one!

Jacky W. 5/5 Verified

TRI-Harness® | Anti-Pull, Adjustable & Durable - Dog Trainers Choice - Red v2.0

FAQs

How to put on a dog harness

Start by unbuckling the harness and having your dog sit or stand still next to you. Slip the harness over their head and pull the straps underneath their tummy. Or, if you have a step-in harness, place it on the floor and help your dog place their feet correctly, before pulling it up over their back. Fasten it up securely, making sure it’s not too tight or too loose, and adjust accordingly.

What is the best dog harness?

The best dog harness really depends on the breed, size, and activity level of your dog. The comfortable Hurricane Harness features a useful handle and is super lightweight, while the Premium Harness is a great all-rounder for any dog. The traditional slip-on harnesses offer quick and easy fitting, while step-in harnesses might be better for dogs that dislike harnesses going over their head. And if your dog pulls, the TRI-Harness helps with training to prevent excessive pulling on the lead. You can read more in our Dog Harness Buying Guide. All of our harnesses are lined with Neoprene which is soft and helps avoid harsh burns unlike other brands.

How to measure a harness for a dog

To measure your dog for a harness, grab a measuring tape and wrap it around the widest part of their ribcage, then measure their neck at the base (where the collar sits and not in the middle of the neck). Make sure that the measurements aren’t too tight, but are secure enough that the harness won’t slip off if your dog pulls. 

If you have the harness already, try it on your dog and make sure you can fit two fingers between the harness and their body. Finally, monitor your dog’s behaviour - if they’re showing signs of discomfort or walking awkwardly, it may need adjusting more to suit your dog.

How to use a dog harness correctly

To ensure you’re using your dog harness correctly, you need to make sure it’s properly fitted. This means that it’s tight enough to prevent the harness moving, but loose enough to allow your pooch to move comfortably. Attach your lead to your chosen D-ring, whether that’s on their back or their chest, and get ready for your adventure!