Flagline Dog Harness with Handle - lightweight, adventure dog harness


Meltwater Teal
Red Rock
Granite Grey

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-dispaering' chest/belly panel that allows you to easily and comfortably assist your dog over obstacles.

And it has 3 points where leashes can be attached including a aluminium V-ring between the shoulders and two reinforced webbing loops - one on the chest and one on the back.  These can be used for training as well.

With 6 points of adjustability,  the Flagline dog harness will fit nearly every dog.  It's easy on/off design also make the Flagline secure and accessible.

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


To size the Flagline Harness measure around your dog's chest.  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 Measure Your Dog's Girth

Here is a video that shows how to fit and adjust the FlagLine Harness

Key Features

  • Lightweight, easy on/off construction
  • 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 and two reinforced webbing loops
  • Debris-resistant liner
  • 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


  • 420 denier nylon ripstop
  • 75 denier polyester lining with heat emboss
  • Nylon webbing
  • ITW Nexus Mach buckles
  • Anodized 6061-T6 aluminum V-ring
  • Made in Vietnam

How to clean

  • Hand wash
  • Mild detergent
  • Air dry

Customer Reviews

Based on 14 reviews
Best Harness on the Market by far!

Kona our 5month old Whippet prefers harnesses over collars, and yes we did try numerous collar types - martingale etc. When we switched to a harness we found Kona stopped pulling, and much happier on walks - but after a while we found the straps rubbed on long walks, we tried others in pet stores without luck and then found ‘Canine Spirit’ and Ruffwear harnesses. We went with the Flagline as it’s lightweight, x6 points of adjustment so it fits really well around Whippets chests! The handle is really helpful for getting in/out of the car, over obstacles etc.

The standout feature must be the adjustability. We sized Kona for a size that just fits (Small), little loose around the edges but after two weeks he’s filled it out and it fits perfectly. Ruffwear harnesses are absolute top quality, and I know that Kona will get years of use out of this one, because as he grows up/out/chest down we can tailor each area to fit perfectly via the x6 points of adjustment.

Compared to harnesses in general pet stores, yes Ruffwear are pricey, but... buy cheap buy twice! I’ve always been told.

Lightweight, fast drying

We also have the everyday front range harness and got this one for two reasons. Firstly, our dog loves water and the padded front range harness often ended up staying wet and nobody likes a to jump into a wet wetsuit if you know what I mean. This harness has basically no padding, just material around the straps. It dries much faster and is also much lighter. The handle is good to hold her if needed. I would only lift her if really needed on that harness as the bottom panel isn’t super wide. If you are needing to lift a larger dog (ours is 25kg) regularly, maybe look at one of the other harnesses.
Five stars for performing exactly what we need it for, attaching a long leash for recall training and playing in bigger areas or going on hikes with a longer leash.

5 star

We love our new harness.... it’s easy to put on, very light weight and durable!


This is a great harness, after buying many over the years this is by far the best.


Great fit, light weight, super easy to keep clean. Not even my husky hair sticks to it. ❤️


Flagline Dog Harness with Handle - lightweight, adventure dog harness

Gold standard for Whippets!

Love this harness! It fits my whippet like it’s tailor made. I purchased a S size for my 17kg whippet. The adjustable straps stay put and don’t slide loose with time. It’s very light, flexible and not bulky so my boy has full movement to run in it, no rubbing spots in armpits, and not too hot to wear in summer. Using the front chest attachment my boy no longer pulls on the lead - which is like magic - I would have paid double for this benefit alone. Highly recommend for whippets with all those glorious curves to fit right!

Flagline Harness perfect for my whippet

This is the best harness on the market in the opinions of Vito and me. It’s easy to fit and Vito is comfortable in it. I love that there are 6 points of adjustment and 3 lead attachement options. This harness is expensive but so worth it. Also canine spirit are awesome to deal with. No fuss and fast delivery. 5 stars

Back for More

Having trialled a Flatline XXS on a Whippet puppy, i am now back for the XS at 4mths old. He's still growing.... and yet to escape!

We'd love your feedback!

Have you enjoyed or dreamed of an epic 'dog-friendly' holiday with your pup?



★ Our Reviews

Customer Love

350 reviews
Cool Kelpie

thanks so very much to Caroline & team for amazing service & fabulous product that we & our hot Kelpie dog have enjoyed using !

He loves them

He loves them he lifts his feet to get them on improved his arthritis as it’s already 3 degrees here and the house has tiled floor they are like slippers for him

Very happy

Very bright red saddle bags arrived very quickly
Really good fit for my 18-month old rottweiller girl. Easy to put on. Very smart. Very well made. Carries daily walk needs ie baggies and treats. Room for keys and extra leads if needed.
I am happy that she is wearing a well fitted and comfortable product.

Ruffwear dog harness

Great harness, easy to apply and adjust.

Best harness ever!!!

We LOVE this harness for our Maggie. She is a rescue and engages in a lot of pulling on leash, either due to hyper arousal (excitement), or fear. With this harness, with the lead attached at the front, she literally barely even tries to pull! It’s super effective. We used to use harnesses that would slightly tighten upon pulling, which now I understand would have compounded her anxiety. This one is so much better for her, and also, such a durable design. It’s also SO bloody easy to put on and take off. We got the bright red which looks fab against her brindle coat. ☺️☺️ Super happy to recommend!