• featured image of Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Lightning
  • featured image of Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Lightning
  • featured image of Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Lightning
  • featured image of Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Lightning
  • featured image of Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Lightning
  • featured image of Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Lightning
  • featured image of Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Lightning
  • featured image of Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Lightning
  • featured image of Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Lightning
  • featured image of Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Lightning
  • featured image of Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Lightning
  • featured image of Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Lightning
  • featured image of Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Lightning
  • featured image of Anti-Pull TRI-Harness® | Training Dog Harness for All Breeds - Lightning
1 Million products sold, happy dogs worldwide

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

£34.99 £24.49 -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: Lightning
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Size: Select Size

Not sure? Try our Size Guide for the perfect fit

Stand out from the pack

Personalise your product (+£4.99)

Make it Theirs

Select Font:

Select Colour:

Select Icon:

Guidance & examples

Size & fit

The stitching area on our XXS, XS and Small sizes is limited; we advise having a maximum of 5 characters and not adding an icon.

Examples from the pack

Red harness with yellow text in hobo font
Red harness with yellow text in hobo font
Tan harness with blue text in BullyBillows font
Tan harness with blue text in BullyBillows font

About personalisation

Important - Creating your unique look with our bespoke stitching/engraving quality could take us up to 7-10 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 Lighter Swivel Combat Lead | Anti-Tangle & Secure Clip - Khaki x Khaki

£29.99
1.4m Lighter Swivel Combat Lead | Anti-Tangle & Secure Clip - Khaki x Khaki

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 - Lightning
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 - Lightning

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

Hear it directly from our ambassadors

@gsdbear

@gsdbear

Once you’ve tried BullyBillows, you’ll never go anywhere else. The quality and range of their products is unmatched, and the team are just fantastic. We’ve been with them since 2020 and we’ve never looked back!

@meko_xlbully

@meko_xlbully

BullyBillows combines strength, comfort, and style perfectly for dogs like Meko. We absolutely adore BullyBillows.

@thepuggysmalls

@thepuggysmalls

We have so many goodies from BullyBillows, from harnesses, leads, dog chews and beds, they tick all the boxes to keep my precious pugs happy, cosy, safe and oh so stylish!

@swedishbulldogfamily

@swedishbulldogfamily

Finding products that our bulldogs genuinely feel comfortable wearing changed everything for us, and that’s exactly what BullyBillows gave us.

Customer Reviews

Overall rating: 4.9 / 5 from 127 reviews.

Customer photo review of Training Anti Pull TRI-Harness® | M-XL Breeds - Lightning

What a stunning harness, the best I’ve bought so far. It’s soft on my furry friend and built to last, you can tell by the feel and the quality stitching and materials used. What I love best about this harness is that there’s no lose ends, it’s full adjustable but without any straps that work their way free. My boy loves it and putting it on and taking it off is a breeze, ideal for our boy when he gets excited just from the sheer mention of the words; walk, park or wanna go out. Absolutely recommend.

Lord J. 5/5 Verified

Training Anti Pull TRI-Harness® | M-XL Breeds - Lightning

Customer photo review of Training Anti Pull TRI-Harness® | M-XL Breeds - Lightning

Our lab likes to wear it which is an improvement on other harnesses. The sizing is a little tricky to get right for both neck and body. As for anti pull - it seems to be an improvement but prehaps not as dramatic as we had hoped so far.

Clare W. 4/5 Verified

Training Anti Pull TRI-Harness® | M-XL Breeds - Lightning

Customer photo review of Training Anti Pull TRI-Harness® | M-XL Breeds - Lightning

Bully Billows was recommended to me by a friend with a Staffie. I must say, I am super impressed with the quality and the look. I ordered the large anti pull harness for my 6 month old Cane Corso X Bully and she got used to it after one fitting. It gives extra control and is so much better than collars round the neck!! She looks great in it! Can highly recommend this company!

Donna S. 5/5 Verified

Training Anti Pull TRI-Harness® | M-XL Breeds - Lightning

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

Absolutely the best there is!!!! I have spent over $1000 on harnesses that are supposed to be top of the line and my bullypit has broke free out of every single one within a few within minutes of putting them on but this has made it over 8 months I really am impressed I bought a C but I have it as tight as it goes to make it fit I'm ordering another color size b just because but it's still in perfect shape 💙💙💙💙 thank you BullyBillow for keeping my Hank Williams safe and sound

Jessica P. 5/5

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

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

I’ve bought a lot of stuff from bully billows because I trust the strength of their harness and leads, I have a pocket bully who loves to pull so my latest purchase was the anti pull harness I’m very pleased with the product and I know it’s going to be strong enough to take the pressure of his strength. I ordered the wrong combat colour by mistake but I’ll just buy another lead to match his harness. Thank you Bully Billows

Linda O. 5/5 Verified

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

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

Love this harness 2nd purchase now we bought 1st one loved it so much so purchased another for our other dog fits perfect love how you can adjust strap so it goes further back and not rubbing under the legs he doesn’t pull at all anymore various access points for the lead and this colour really “pops” so nice and packaging box is a really nice touch too 👍🏼

Pip 5/5

TRI-Harness® | Anti-Pull, Adjustable & Durable - Dog Trainers Choice - CAMO Lightning 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!