BrilliantK9 Ergonomic Dog Harness Tweener

by ProductPro
Much like our Stripper size harness, the Tweener harness fits the unique body shape of the larger Frenchies, Pugs, and Bostons. Their large barrel rib cage require a Medium sized saddle, while their smaller waists and short backs require the girth and chest strap fittings of our small sized harness. The Tweener harness caters to these unique fittings to give these breeds the comfort and fit that they deserve. The Ultrasoft girth and chest strap help to prevent skin irritation while the reflective outlining keeps your pet highly visible while wearing their BrilliantK9 harness.

New Speed Buckle Option great for people with arthritis, Service Dogs, Assistance Dogs.   

Please note that while Frenchies and Pugs are the most common breeds that would benefit from this harness, other breeds may as well. For further advice on which size to get for your best friend, please contact us at

Tweener - #1 Front 10" to 12" - #2 Girth 20" to 26"- Approximate Weight Range 16lbs to 20lbs - Breed Type: French Bull Dog, Bull Terrier, Staffordshire Bull Terrier


  • 14 available sizes, each with adjustable chest and belly straps, ensuring the perfect fit
  • Reduced pulling keeps both dogs and handlers comfortable and safe
  • Lightweight and manufactured in the the USA for durability, long-lasting performance
  • Uncomplicated design allows harnesses to be easily put on and removed
  • Reflective trim and quick grab handle offer added safety
  • Dogs will look stylish in one of 31 colors and patterns
  • Easily add your dog`s name with our customizable name patches

Please remember the harness is designed to fit further back and looser on the dog, if the harness is too far forward or tight it will not work properly and it will cause the dog to be uncomfortable. If you are at the end of a size range then go up to the next size. If you are not sure what size to buy you can always email us at send a picture of your dog from the side with height, weight and age, and we will be happy to help you out. Or you can check out the helpful videos below.

Watch this video first for an overall demo of the harness

Enjoy walking your dog in the BrilliantK9 Harness

Setting the harness up to fit your dog

Fitting the harness to your dog

Additional Information

BrilliantK9 harnesses are a unique and innovative alternative to traditional dog collars and harnesses. Their ergonomic construction reduces strain on the dog`s neck, shoulders, hips and knees, while allowing easy and comfortable movement.

Have a dog that pulls? Unlike traditional leashes, our harnesses don`t engage a dog`s natural opposition reflex, thus pulling is minimized. The belly strap sits behind the rib cage, preventing the dog from dropping its chest to lean in and pull.

What's in the Box


2 removable BrilliantK9 embroidered patches

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