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 58 reviews
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.


Kathryn E.
Perfect running harness

Really easy to put on and plenty of flexibility for my dog to run and scramble

Rebecca W.
Fantastic escape free harness

Our new rescue dog (?bullarab x greyhound) would become very scared all of a sudden on a walk and pull away and get out of his harness. He can’t escape this flagline harness and the handle is excellent to give that extra security of holding him tight if he has a freak out. We bought the small but he has now outgrown that so now buying the medium. He runs and plays in it very comfortably. We use each different attachment point at various times.

Highly recommend

Excellent harness - sturdy, lightweight and not bulky, which was an essential requirement for our slim and speedy Whippet. The multiple adjustment points allow a perfect fit for our six month old escape artist, Ziggy, with scope to adapt the fit as he grows. This harness is strongly made and the three different points to clip the lead are handy. The handle along the back is such a great feature, particularly as our social boy is prone to jumping up in excitement when he meets new people and other dogs. We have also found that he pulls much less in this harness too. Worth the outlay for this high quality harness, which has lived up to all the recommendations I read prior to purchase. Very happy customer!

awesome harness

Bought this harness for my 3-legged bull terrier, after seeing alot of online reccomendations!
definitely worth the purchase, cant wait to be able to comfortable take my girl on longer bush walks without worrying she will strain her only hind leg too much.
fit is great, even on a stubbier dog like a bull teriier!

Kay M.

Thank you.very happy with it

Fantastic for a whippet

Wonderful harness! So easy to put on (once you’ve done the initial adjustment to their specs) and she’s comfortable wearing it! This product is quality and well made! It’s impossible for her to escape out of this. We ordered the XS after reading other reviews on whippet sizing and it’s perfect! We bought the Ruffwear lead too which we are happy with also!

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