Free delivery on orders over £70 Learn More.

Enable Accessibility

Search suggestions:

Best Sellers

  • New Colour
    Pink Mountains (990) Pink Mountains (990) Blaze Orange (850) Basalt Gray (042) River Rock Green (355) Blue Pool (410) Red Canyon (625) Moonlight Mountains (964) Spring Mountains (968) Coastal Mountains (973) Pink Mountains (990) Blaze Orange (850) Basalt Gray (042) River Rock Green (355) Blue Pool (410) Red Canyon (625) Moonlight Mountains (964) Spring Mountains (968) Coastal Mountains (973) Pink Mountains (990) Blaze Orange (850) Basalt Gray (042) River Rock Green (355) Blue Pool (410) Red Canyon (625) Moonlight Mountains (964) Spring Mountains (968) Coastal Mountains (973) Pink Mountains (990) Blaze Orange (850) Basalt Gray (042) River Rock Green (355) Blue Pool (410) Red Canyon (625) Moonlight Mountains (964) Spring Mountains (968) Coastal Mountains (973) Pink Mountains (990) Blaze Orange (850) Basalt Gray (042) River Rock Green (355) Blue Pool (410) Red Canyon (625) Moonlight Mountains (964) Spring Mountains (968) Coastal Mountains (973)
    Front Range® Dog Harness colors

    Front Range® Dog Harness

    padded, everyday adventure

    4.8
    Rated 4.8 out of 5 stars
    4,402 Reviews
    From £49.95 GBP - £59.95 GBP £49.95 GBP - £59.95 GBP
  • Lichen Green (315) Grip Trex™ Dog Boots Lichen Green (315) Red Sumac (607) Grip Trex™ Dog Boots Lichen Green (315) Red Sumac (607) Grip Trex™ Dog Boots Lichen Green (315) Red Sumac (607) Grip Trex™ Dog Boots Lichen Green (315) Red Sumac (607) Grip Trex™ Dog Boots Lichen Green (315) Red Sumac (607) Grip Trex™ Dog Boots Lichen Green (315) Red Sumac (607) Grip Trex™ Dog Boots Lichen Green (315) Red Sumac (607) Grip Trex™ Dog Boots Lichen Green (315) Red Sumac (607)
    Grip Trex™ Dog Boots colors

    Grip Trex™ Dog Boots

    all-terrain paw wear

    4.6
    Rated 4.6 out of 5 stars
    1,081 Reviews
    From £52.95 GBP - £54.95 GBP £52.95 GBP - £54.95 GBP
  • Earth Brown (210) Mineral Yellow (717) Earth Brown (210) Blue Dusk (407) Sun Shower™ Dog Raincoat Hibiscus Pink (647) Mineral Yellow (717) Earth Brown (210) Blue Dusk (407) Sun Shower™ Dog Raincoat Hibiscus Pink (647) Mineral Yellow (717) Earth Brown (210) Blue Dusk (407) Sun Shower™ Dog Raincoat Hibiscus Pink (647) Mineral Yellow (717) Earth Brown (210) Blue Dusk (407) Sun Shower™ Dog Raincoat Hibiscus Pink (647) Mineral Yellow (717) Earth Brown (210) Blue Dusk (407) Sun Shower™ Dog Raincoat Hibiscus Pink (647) Mineral Yellow (717) Earth Brown (210) Blue Dusk (407) Sun Shower™ Dog Raincoat Hibiscus Pink (647)
    Sun Shower™ Dog Raincoat colors

    Sun Shower™ Dog Raincoat

    waterproof, windproof

    4.8
    Rated 4.8 out of 5 stars
    737 Reviews
    From £47.96 GBP - £76.95 GBP £47.96 GBP - £76.95 GBP
  • 30% off
    Strata (962) Strata (962) Galaxy (954) Blue Jay (437) Cedar Green (302) Canyonlands Orange (820) Blossom (923) Glacier (935) Strata (962) Galaxy (954) Blue Jay (437) Cedar Green (302) Canyonlands Orange (820) Blossom (923) Glacier (935) Strata (962) Galaxy (954) Blue Jay (437) Cedar Green (302) Canyonlands Orange (820) Blossom (923) Glacier (935) Strata (962) Galaxy (954) Blue Jay (437) Cedar Green (302) Canyonlands Orange (820) Blossom (923) Glacier (935) Strata (962) Galaxy (954) Blue Jay (437) Cedar Green (302) Canyonlands Orange (820) Blossom (923) Glacier (935) Strata (962) Galaxy (954) Blue Jay (437) Cedar Green (302) Canyonlands Orange (820) Blossom (923) Glacier (935)
    Climate Changer™ Dog Fleece colors

    Climate Changer™ Dog Fleece

    technical, breathable fleece

    4.7
    Rated 4.7 out of 5 stars
    464 Reviews
    Original price £74.95 GBP £52.45 GBP
Graphite Gray
Graphite Gray
Graphite Gray
Graphite Gray
Graphite Gray
Graphite Gray
Graphite Gray
Graphite Gray
Swamp Cooler™ H
Swamp Cooler™ H
Graphite Gray
Heliotrope Purple
Heliotrope Purple
Heliotrope Purple
Heliotrope Purple
Heliotrope Purple
Heliotrope Purple
Heliotrope Purple
Heliotrope Purple
Swamp Cooler™ H
Swamp Cooler™ H
Heliotrope Purple
Sage Green
Sage Green
Sage Green
Sage Green
Sage Green
Sage Green
Sage Green
Sage Green
Swamp Cooler™ H
Swamp Cooler™ H
Sage Green
Sage Green
Sage Green
40% off
4.8
Rated 4.8 out of 5 stars
256 Reviews

Swamp Cooler™ Harness

cooling dog harness

Color

Selected: Graphite Gray

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.

Girth Size
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
Shipping box icon.

Free Delivery*

 Leaf icon.

Better With Each Design

 Trail Tested Promise icon

Trail Tested Promise
Right Arrow

The Swamp Cooler Harness is an all-in-one cooling solution for dogs exploring in hot conditions. This harness integrates our Swamp Cooler™ evaporative cooling tech with Ruffwear's reliable multi-use body harness platform. Ruffwear's signature strong leash connection points, high adjustability, quick-grab handle, and easy on/off features are elevated with cooling capability throughout the back panel and supportive chest/belly panel.

The Swamp Cooler Harness adds a cool factor to a harness designed to keep the adventure going, when the temps are high and your dog's stoke for exploration is even higher.

How does Swamp Cooler™ Tech work? Learn more about evaporative cooling and other ways to keep your dog cool here.

Swamp Cooler™ Tech

Three-layer construction absorbs water and promotes evaporative cooling.

Padded Handle

Balanced and comfortable lifting and assisting with padded handle and load-dispersing chest/belly panel.

Strong Connections

Two leash connection points: an aluminum V-ring and reinforced webbing loop on back.

Additional Features

  • Lightweight, easy on/off construction built with Swamp Cooler™ Tech

  • Wicking outer layer reflects heat and facilitates evaporation

  • Absorbent middle layer stores water for evaporation

  • Mesh lining keeps dog dry and comfortable

  • Balanced and comfortable lifting with padded handle and load-dispersing chest/belly panel

  • Six points of adjustment for an optimal fit

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

  • Reflective trim and light loop for attaching The Beacon™

  • Materials

    • Outer Layer (bluesign® approved): polyester air mesh
    • Middle Layer: polyester felt
    • Lining (bluesign® approved): dry-weave polyester mesh
    • Webbing: nylon
    • Buckles (bluesign® approved): ITW Nexus Mach 1 side-release
    • Leash Connection Point: anodized 6061-T6 aluminum V-ring
    • Made in Vietnam

  • Care

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

Swamp Cooler™ Harness Videos

  • About the Swamp Cooler™ Harness

    Learn more about the Swamp Cooler Harness from Rachel and Nova.

  • How To Use Cooling Gear

    Learn more about how to use Ruffwear cooling gear from Rachel and Nova.

Find The Right Size For Your Dog

Measurement is around the widest part of the rib cage.

Sizing Chart

Measurement is around the widest part of the rib cage.
Product Figure
Girth Size
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

13-17 in (33-43 cm)

Ratings & Reviews

4.8
Rated 4.8 out of 5 stars
Based on 256 reviews
Slide 1 selected
256 reviews
  • Megan H.
    Verified Buyer
    I recommend this product
    Type of Activity Running, Hiking, Camping, Biking, Backpacking
    Dog Size Medium
    Rated 5 out of 5 stars
    3 minutes ago
    Made a Noticeable Difference for Our 13-Year-Old Girl!

    We absolutely love this harness! Our girl Jenny just turned 13 and has a dark coat, so I've noticed she's becoming more sensitive to the sun on walks and hikes as she's gotten older. She still gets around incredibly well and wasn't necessarily struggling before, but the difference in her comfort and happiness while wearing this harness has been really noticeable!

    We even took her on a hike in Lake Tahoe for her 13th birthday this summer, and she did seven miles at 8,000 feet like it was nothing! I really think this harness helped make that possible.

    She's about 40 pounds and built a bit like a large beagle, and the medium fits her perfectly. I also love how adjustable everything is. It does need to be re-wetted periodically in really hot conditions, but it stays effective for quite a while.

    I couldn't recommend it more, especially for older dogs or dogs with dark coats who still love getting outside!

    Was this helpful?
  • Tony C.
    Verified Buyer
    I recommend this product
    Type of Activity Running, Hiking, Other
    Dog Shape Deep chested
    Dog Size Large
    Rated 5 out of 5 stars
    1 month ago
    Swamp cooler harness review. Didn't no what u meant here?

    This is my second purchase of this harness. Last one I bought in June of 2025. Have had at least a half dozen different ones before your harness. The best one I've ever purchased! Strong and tough, especially when it's strapped to a land shark. ( Belgian Malinois). The last one just started to fray along the main buckle and a little on the handle. Still, over 1200 miles on that harness, with some serious tugging! Awesome...

    Was this helpful?
  • jenni h.
    Verified Buyer
    I recommend this product
    Type of Activity Hiking
    Dog Size Medium
    Rated 5 out of 5 stars
    2 months ago
    Great Vest

    It has been an exceptionally hot summer in eastern Idaho. My black dog was a little confused when we put this on her, but she went from panting in the shade to comfortable and was far more active in the heat!

    Was this helpful?
  • Corinne
    I recommend this product
    Rated 5 out of 5 stars
    2 months ago
    5 Stars

    Tout parfait le harnais au top juste un peu grand mais malgré bien mesuré il est top malgré tout et la livraison super rapide,vraiment super sites.

    Was this helpful?
  • Emmanuel F.
    Verified Buyer
    I recommend this product
    Type of Activity Hiking, Camping, Backpacking, Water
    Dog Shape Robust
    Dog Size Medium
    Rated 5 out of 5 stars
    2 months ago
    Pleasantly Surprised

    This was my first time purchasing an item like this for my Australian Cattle Dog and we have been hiking a lot lately. It was a warm day and I checked the temperature under the harness and it was quite cool! My dog Luna also seemed very happy to have it on.

    Was this helpful?