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XL & Extra Large Dog Harnesses

Looking for an XL dog harness? Browse our recommendations for harnesses designed to suit extra-large dogs. Give your giant breed the ultimate comfort and security with heavy-duty gear built for power. Whether you need an extra large dog harness with a handle for close control, a no-pull dog harness XL for training, or a durable XXL dog harness for a Mastiff, our collection offers uncompromising strength. Enjoy Free UK Delivery on orders over £30.

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Personalise 200k sold worldwide Save 50% Express HarnessExpress Harness
(4.9)

Express Harness

Sale priceFrom £31.00 GBP
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Dog size All sizes

Best for Daily Use, All Activities

SAVE 50% on Grey SAVE 25% on Camo On sale Quick Fit HarnessQuick Fit Harness
(4.9)

Quick Fit Harness

Sale priceFrom £11.75 GBP Regular price£23.50
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Dog size All sizes

Best for Daily Use, All Activities

No-pull, training essential A black Crosscheck 'No Pull' Dog Training Harness with red stitching and the EzyDog brand tag, designed for training and walking dogs with multiple lead attachment points.A black Crosscheck 'No Pull' Dog Training Harness with red stitching and the EzyDog brand tag, designed for training and walking dogs with multiple lead attachment points.
(4.8)

Crosscheck Harness

Sale priceFrom £19.00 GBP
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Dog size All sizes

Best for Training, Active

No-pull 60,000 sold X-Link Harness in Khaki - Back angle viewDog wearing grey EzyDog X-Link harness with rear lead attachment
(4.9)

X-Link Harness

Sale priceFrom £44.50 GBP
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Dog size All sizes

Best for Daily Use, Active, CityScapes

Crash tested & certified A black drive dog car harness with webbing handles and a buckle, featuring double stainless steel D-rings and a padded chest plate.a dog wearing EzyDog Drive harness
(4.7)

Drive Car Harness

Sale priceFrom £79.00 GBP

Dog size All sizes

Best for Daily Use

NEW! FREE Seat Belt Attachment Essential Chest Plate HarnessEssential Chest Plate Harness
(4.9)

Essential Chest Plate Harness

Sale priceFrom £18.50 GBP
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Dog size All sizes

Why Choose EzyDog XL & Extra Large Dog Harnesses?

  • Uncompromising Heavy-Duty Strength: Giant breeds require serious hardware. Our extra large dog harnesses are engineered with high-tensile webbing, reinforced stitching, and stainless steel or forged alloy D-rings. This guarantees that your gear won't snap or fray under the immense pulling power of an XL breed.
  • Integrated Grab Handles for Control: Navigating crowded spaces with a 40kg+ dog can be daunting. We highly recommend designs like our Convert Harness, which functions as an extra large dog harness with a handle, giving you instant, secure traffic control when you need it most. For more, explore our dog harness with handle options.
  • No-Pull Solutions for Big Dogs: If your giant breed pulls, standard walking gear isn't enough. Our No-Pull Dog Harnesses include XL sizing with front-attachment points and checking systems, serving as the perfect no-pull dog harness XL to gently steer heavy dogs without choking.
  • Ergonomic Fit for Broad Chests: Standard harnesses often pinch the armpits of broad-chested dogs. Our XL and XXL dog harnesses feature highly adjustable straps and padded chest plates to distribute weight evenly, ensuring chafe-free comfort.
  • Part of Our Core Size Range: If you find your dog's girth measurement falls just below our extra-large specifications, please browse our standard Large Dog Harnesses collection to ensure a snug, escape-proof fit. For more options, you can browse our Dog Harnesses collections.

Frequently Asked Questions

How do I measure my dog for an XL or XXL harness?

For giant breeds, weight is not an accurate indicator of harness size. You must measure your dog’s girth (the widest part of their chest, just behind the front legs) using a flexible tape measure. Compare this to the specific sizing chart on each product page.

Are these harnesses strong enough for giant breeds like Mastiffs?

Absolutely. We over-engineer our extra large dog harnesses using automotive-grade webbing and heavy-duty load-bearing hardware. They are thoroughly tested to withstand the extreme pulling force of giant breeds.

What is the best XL dog harness for a dog that pulls?

For heavy pullers, we recommend a harness with a front leash attachment point or a girth checking system, such as the X-Link or Crosscheck. Utilizing a no-pull dog harness XL redirects your dog's momentum gently and effectively.

Do your extra large dog harnesses have a handle?

Yes. Recognizing the need for close physical restraint with giant breeds, models like our Convert Harness and Chest Plate Harness feature a built-in, heavy-duty traffic handle on the top. Explore our dog harness with handle options here.

Will an XL harness rub or chafe a broad-chested dog?

No. Our harnesses are ergonomically designed with padded chest plates and breathable mesh. The adjustable straps ensure the harness sits securely on the ribcage, leaving the shoulder joints completely free to prevent underarm chafing.

Can I use these XL harnesses for car travel?

While our walking harnesses are incredibly strong, for UK road travel, you should use a dedicated, crash-tested restraint. We offer the Drive Harness in XL sizes within our Dog Car Harnesses collection to ensure legal and safe vehicle travel.

What if my dog is between a Large and an Extra Large?

If your dog's girth measurement sits on the border between sizes, we generally recommend sizing up to an XL to ensure the straps are not digging in, provided the harness can be adjusted snugly enough so that it does not slip.

Are these harnesses escape-proof for powerful dogs?

When adjusted according to our fitting guides (using the \"two-finger rule\"), our harnesses are exceptionally secure. For dogs prone to backing out of their gear, a snug girth fit is vital.

Do your extra-large dog harnesses come with a warranty?

Yes. Because we stand behind the durability of our heavy-duty gear, every EzyDog XL dog harness is backed by a 1-year warranty against manufacturing defects, giving you total peace of mind.