Polar Blue
Polar Blue
Polar Blue
Polar Blue
Polar Blue
Rose Violet
Rose Violet
Rose Violet
Rose Violet
Rose Violet
Deep Teal
Deep Teal
Deep Teal
Deep Teal
Deep Teal
Basalt Gray
Basalt Gray
Basalt Gray
Basalt Gray
Basalt Gray
Polar Blue
Polar Blue
Polar Blue
Deep Teal
Deep Teal
Basalt Gray
Basalt Gray
Rose Violet
Rose Violet
Polar Blue
Rose Violet
Deep Teal
Basalt Gray
New

Front Range® Flex Harness

Light, Flexible, Engineered Knit Harness

Our ultimate in fit, comfort, and mobility.

Color

Selected: Rose Violet

The Front Range® Flex Harness is built for the ultimate in dog comfort. By utilizing an engineered knit material inspired by performance footwear, this everyday harness conforms to and moves with a dog’s body through every stride for an exceptional, seamless fit. This precision engineered knit construction delivers maximum comfort with minimal bulk and seams, creating a lightweight breathability that reduces rubbing and chafing and allows your dog to focus on the trail ahead. The engineered knit process itself reduces material waste compared to standard cut-and-sew harness construction.

The harness features four points of adjustment, buckles for easy on/off, and two leash attachment points: an aluminum V-ring on the dog's back and reinforced webbing at the dog's chest to redirect dogs that pull on leash. Reflective trim and an integrated light loop for The Beacon™ boost visibility in low-light conditions. The expanded size offerings and soft construction make this harness ideal for companions of all breeds and sizes. The Front Range® Flex Harness takes everything you love about our best-selling Front Range® Harness and delivers it in a lighter, more agile design for high-energy adventures.

Complete the kit for the even greater comfort with the matching Front Range™ Flex Collar and Front Range™ Flex Leash.

Ultimate Comfort

Engineered knit construction is light, flexible, and soft to conform to a dog’s body for ultimate fit and comfort

Adjustable

Four points of adjustment for an optimal fit

Strong Connections

Two leash attachment points: aluminum V-ring on back and reinforced webbing on chest

Additional Features

  • Side-release buckles for easy on/off

  • Engineered knit process reduces material waste compared to standard cut-and-sew harness construction

  • Reflective trim for visibility in low-light conditions

  • Seamlessly integrated light loop for attaching The Beacon™

  • ID pocket stores dog tags

  • Materials

    • Body: 75% polyester/25% nylon engineered knit
    • Webbing: 100% Polyester (30% recycled)
    • Front Leash Attachment: Nylon webbing in molded TPU
    • Back Leash Attachment: Anodized 6061-T6 aluminum V-ring
    • Buckles: ITW Nexus Mach 1 Side-Release (bluesign® approved)
    • Made in Vietnam
  • Care

    • Secure fasteners
    • Wash in cold water
    • Gentle cycle
    • Mild detergent
    • Air dry

Find the Right Size for Your Dog

Measurement is around the widest part of the rib cage.

Sizing Chart & Technical Specs

Use the sizing chart select the appropriate size for your dog. In between sizes: Choose the larger size.
Product sizing chart table
Girth Size
9 - 13 in (23 - 33 cm) XXXS
13 - 17 in (33 - 43 cm) XXS
17 - 22 in (43 - 56 cm) XS
22 - 27 in (56 - 69 cm) S
27 - 32 in (69 - 81 cm) M
32 - 42 in (81 - 107 cm) L/XL
Find the Right Size for Your Dog chart
Select Size

9-13 in (23-33 cm)

Ratings & Reviews

4.8
Rated 4.8 out of 5 stars
Based on 53 reviews
Total 5 star reviews: 44 Total 4 star reviews: 8 Total 3 star reviews: 1 Total 2 star reviews: 0 Total 1 star reviews: 0
Slide 1 selected
53 reviews
  • Samuel J.
    Verified Buyer
    Reviewing
    Front Range® Flex Harness Medium / Polar Blue (482) / Used-2
    I recommend this product
    Type of Activity Other, Running
    Dog Shape Deep chested
    Dog Size Medium
    Rated 5 out of 5 stars
    12 hours ago
    Front Range Flex Harness rocks!

    Our 2 year old rescue American Staffordshire Terrier Pepper had been using a Front Range harness passed down from our pit mix Libby who passed away a year ago. The old harness was 10 years old and starting to fray around the edges (although still quite usable). We decided to try the new flex harness and Pepper absolutely loves it. While we were constantly removing hair buildup from the belly area of the original harness, we find little to none on the flex version which indicates to me the flex harness is not chafing but rather moving as Pepper moves. We are experiencing mid 90s heat here in central Florida and I've noticed Pepper doesn't get as hot in the flex harness during morning walks no doubt due to the lighter and more breathable material. We have owned a lot of Ruffwear products and while they may not be cheap, they are really good quality and won't require replacement during most pets lifetimes, making them a good value overall in the long run. Pepper weighs 62 pounds and the medium fits her fine with a few inches of adjustment to spare.

    Highly recommended.

  • Felicity O.
    Verified Buyer
    Reviewing
    Front Range® Flex Harness Small / Basalt Gray (042) / New
    I recommend this product
    Type of Activity Other
    Rated 5 out of 5 stars
    6 days ago
    Light weight

    My dog absolutely loves how lightweight this harness is. I hope they’ll introduce more color options in the future.

  • Matthew B.
    Verified Buyer
    Reviewing
    Front Range® Flex Harness Medium / Deep Teal (444) / New
    I recommend this product
    Type of Activity Hiking, Camping, Backpacking, Running
    Dog Shape Deep chested
    Dog Size Medium
    Rated 5 out of 5 stars
    1 week ago
    Good Option for Active Dogs

    My border/Aussie mix seems far more comfortable in this version of the harness than his front range. The lighter material and the way it moves have him moving more naturally than he did in other harnesses.

  • Virginia C.
    Verified Buyer
    Reviewing
    Front Range® Flex Harness Medium / Polar Blue (482) / New
    I recommend this product
    Type of Activity Other
    Dog Shape Deep chested
    Dog Size Medium
    Rated 5 out of 5 stars
    1 week ago
    Front line harness

    I am very pleased with this flex harness. Through the years I have purchased 5 front line harnesses. All are still in use. I like the different colors. I use some in the winter and others in the summer. They are perfect after washing. I hang them to dry. I highly recommend.

  • Nadine O.
    Verified Buyer
    Reviewing
    Front Range® Flex Harness Small / Rose Violet (670) / New
    I recommend this product
    Type of Activity Hiking, Camping, Water
    Dog Size Medium
    Rated 5 out of 5 stars
    1 week ago
    We love the harness

    Fits well, love the color, seems durable.