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Deep Teal
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
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
New
4.8
Rated 4.8 out of 5 stars
65 Reviews

Front Range® Flex Harness

Light, Flexible, Engineered Knit Harness

Engineered knit harness designed for the ultimate in fit, comfort, and mobility.

Color

Selected: Deep Teal

Choose size

Sizing Chart

Use this fit guide to find the right size for your dog. Measurement is around the widest part of the rib cage. In between sizes? Choose the smaller 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
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Better With Each Design

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Trail Tested Promise
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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™

  • 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

Front Range® Flex Harness Videos

  • About the Front Range® Flex Harness

    Learn more about the Front Range® Flex Harness from the Pack.

Featured

Choosing the Right Dog Harness

Whatever the adventure, Ruffwear harnesses are designed to take canine explorers where they want to go. They're built from a dog's perspective and offer solutions for everyday wear, training or leash pulling, or lift-and-assist.

Learn More Right Arrow

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 65 reviews
Total 5 star reviews: 54 Total 4 star reviews: 9 Total 3 star reviews: 2 Total 2 star reviews: 0 Total 1 star reviews: 0
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65 reviews
  • Laura O.
    Verified Buyer
    I recommend this product
    Dog Shape Slight
    Dog Size Small
    Rated 5 out of 5 stars
    1 hour ago
    Perfect Harness

    We have a new puppy and I prefer a harness for walking him. He is still small and I’m so happy to find that Ruffwear had one to fit him perfectly. He may outgrow it in the future but it is worth it to have one to train him with now. The flex harness is soft and comfortable for our puppy.

    Was this helpful?
  • Karen N.
    Verified Buyer
    I recommend this product
    Type of Activity Camping, Biking, Other
    Dog Size Small
    Rated 5 out of 5 stars
    2 hours ago
    WAY CUTE!

    This harness proves you don’t have to choose between looking good and staying safe. It’s giving front row fashion with a front range function!

    Was this helpful?
  • Jacqueline C.
    Verified Buyer
    I recommend this product
    Type of Activity Other
    Dog Shape Broad
    Dog Size Medium
    Rated 5 out of 5 stars
    Yesterday
    Front Range Flex Harness

    It feels more comfortable on my dog he was using the other which I still love but this is much more comfortable for him in the warm weather

    Was this helpful?
  • Megan G.
    Verified Buyer
    I recommend this product
    Type of Activity Running, Hiking, Camping
    Dog Shape Deep chested
    Dog Size Small
    Rated 5 out of 5 stars
    Yesterday
    Mabel's Favorite Harness!

    I ordered a Front Range Flex harness for all three of my dogs, and while they have been amazing for all three dogs, it's been especially awesome for my little Bully mix, Mabel. She has a weird shaped body, so harnesses don't always fit her properly - but this one is perfect! See photos of Mabel in the wild below and follow her on Instagram at @Mabelsmug for more cute photos! Thanks Ruffwear!

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  • Jenny X.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    Yesterday
    Great!

    So far so good! Wish there were better colour options, like more pastels and and cool colour combinations.

    Was this helpful?