NEW DESIGN! Ruffwear Flagline Dog Harness - lightweight, back handle


Blue Dusk
Lichen Green
Salmon Pink
Sage Green


The Ruffwear Flagline Harness is lightweight harness that is great for active dogs that love to run, scramble and conquer everyday adventures.   It has a padded back handle and also a 'load-dispersing' chest/belly panel that allows you to easily and comfortably assist your dog over obstacles.

This streamlined harness is also great for tri-paw'd dogs that need a little help to stand, get up stairs or in/out of the car.

The Flagline Harness has 3 leash attachment points including an aluminium V-ring between the shoulders and 2 reinforced webbing loops - one on the chest and one on the back.  These can be used for training as well.

With 6 points of adjustment, this dog harness will fit nearly every dog. It has been popular with hard-to-fit deep chested breeds like Whippets, Lurchers and Greyhounds. It's easy on/off design also make it secure and accessible. 

Pair up any Ruffwear leash to your harness order & SAVE 10% on the leash!    Use 'SETSAVE10' at checkout

Check out the new matching Flagline Leash!

What's New: New shell fabric for improved durability and colorfastness; updated, more streamlined handle; updated material for the leash attachment point on the chest.


To size find the right size, measure around your dog's chest / rib cage at the widest point.  In between sizes?  Choose the larger size.

 Size Chest Measure
XXS 33-43cm (13-17")
XS 43-56cm (17-22")
S 56-69cm (22-27")
M 69-81cm (27-32")
L/XL 81-107cm (32-42")


How to Fit & Adjust the Flagline Harness Video Below

Key Features

  • Lightweight, easy on/off construction
  • Comfortable lift & assist - Balanced and comfortable lifting with padded handle and load-dispersing chest/belly panel
  • Six points of adjustment for an optimal fit
  • Three leash attachment points: aluminum V-ring on the back and two reinforced webbing loops - one on the chest and one on the back
  • Debris-resistant liner that sheds dirt & fur.
  • Reflective trim for visibility in low-light conditions and light loop for attaching The Beacon™
  • Pair up any Ruffwear leash to your harness order & SAVE 10% on the leash!    Use 'SETSAVE10' at checkout

Learn all about the Key Features of the Flagline Harness in the video below


  • Shell:  150 denier polyester ripstop
  • Lining:  75 denier polyester lining with heat emboss
  • Nylon webbing straps
  • Buckles:  ITW Nexus Mach side-release buckles
  • Back Leash Attachment Point:  Anodized 6061-T6 aluminum V-ring
  • Made in Vietnam

How to clean

  • Hand wash
  • Mild detergent
  • Air dry

Customer Reviews

Based on 64 reviews
Linda M.

Excellent fit perfect for Italian greyhounds.
I would not trust another harness these are the best.
Love the new colours

Andrea P.
Great harnesses for whippets who love escaping.

I used the webmaster for many years but decided to give this a try. I bought the M size for my 2 whippets and it fits great. They love it and are comfortable in it for long hours. It’s lightweight and durable. Very happy, highly recommend. Worth the investment.

V. J.
Great fit and weight! Excellent Service :)

We're really happy with the flagline harness. It fits our border collie really well and is perfect as I ease him into morning jogs with me. The back handle is useful when we spot any major distractions or if I need to pick him up and was the main reason I opted for the flagline harness. I also really appreciated the small loops designed for clipping on lights for early mornings and late evenings.

My only suggestion for the flagline harness - and this is not related to Canine Spirit who were incredibly helpful - would be a clip on the front of the harness to attach the lead to. Though my BC is now a good loose leash walker and we don't require a front clip, having a front clipping harness as a really effective tool for him to learn. Perhaps if your dog is still young then it is worth considering a harness that has that feature.

Lillian C.
Whippet loves it!

Our 6 month old whippet had trouble walking on leash with other harnesses and collars we had tried. As soon as we put this on him and fitted it to his size he started walking great! Must be more comfortable to him. We got size S and it fits him on smallest adjustment now - with room to adjust as he finishes growing.

Joanne R.
Happy puppy

The harness is a great fit for my dog and stands still for me to put it on her. She didn't like her old harness, making it difficult to go walking.
The handle makes it easy to quickly pick her up when needed. We're very happy with this purchase 😊

Bernie S.
Life changing

Our dog Bernie is a boisterous little dude who could not be contained by any harness - until now. He’s a 1 year old German Wirehaired Pointer and the small fit him perfectly. This is the easiest harness to put on and can be adjusted really easily so I’m sure there will be plenty of room if he keeps growing. I’m so glad we decided to get this harness!! ❤️

Cheryl H.

I have sent the product back as I no longer have the dog it was for

Functional product and great customer service.

Purchased the harnesses for a camping weekend and a wrong colour was sent. After reaching out to customer service, they rectified the situation immediately. Would definitely purchase from them again. Ruffwear’s flagline harness is perfect for keeping my dog safe, especially if they are adventure dogs.

Craig K.


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