Ruffwear Swamp Cooler Cooling Dog Harness

by Ruffwear
Starting From: $74.99 Our Price: $74.99
In Stock

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  • Lightweight, durable dog cooling harness
  • Evaporative cooling system with three-layer design
  • Six adjustable points to fully customize to your dog's shape
  • Two leash attachment points
  • Padded handle to assist your dog over rough terrain
  • Reflective material for optimum visibility
  • Available in a variety of sizes and three different colours

The lightweight and durable Ruffwear Swamp Cooler Cooling Dog Harness keeps your dog cool on the go. It functions with an evaporative cooling system that relies on a three-layer design that is highly absorbent and encourages evaporation. To use the harness, simply pour water on the material, or dunk the whole harness in water. The middle polyester non-woven felt layer rapidly absorbs water. The outer layer polyester air mesh layer then releases the evaporated water to help your canine regulate its core temperature. Rehydrate the harness as needed to help your dog maintain a safe temperature on longer outings.

The Swamp Cooler Harness design provides shade and sun protection with a UPC rating of 50+. The two leash attachment points on the back of the harness let you choose the connection point that best suit's your dog's walking style. Use the top handle to provide support or assist your dog across difficult terrain. The ITW Nexus Mach side buckles let you easily remove and put on the harness. The buckles also help you adjust the harness to fit your dog’s unique size and shape. Reflective trim adorns the sides and chest of the vest to provide better visibility in low light and the light loop is the ideal connection point for the Ruffwear Beacon. The Swamp Cooler Cooling Dog Harness is available in a variety of sizes and colours. Please see specifications for additional information.

Explore Ruffwear's full line of collars, harnesses, and seasonal and outdoor gear for dogs here.


Sizing Chart

Girth Size
33-43 cm (13-17") XXS
43-56 cm (17-22") XS
56-69 cm (22-27") S
69-81 cm (27-32") M
81-107 cm (32-42") L/XL



How to Measure Your Dog


  1. Muzzle Length
  2. Measure the length of the nose from the tip to the crook where you want the muzzle to sit comfortably below the eyes.

  3. Muzzle Width
  4. Measure the circumference of the muzzle at the widest part, leaving space for two fingers to ensure a comfortable fit.

  5. Neck
  6. Measure the circumference of the base, leaving enough space to comfortably fit two fingers.

  7. Leg Length
  8. Measure your dog from the top of the shoulder and hip to the floor.

  9. Chest Girth
  10. Measure the circumference of the widest part of the chest behind the front legs.

  11. Length
  12. Measure the length from the top of their shoulders to the base of their tail.

  13. Paw Width
  14. Measure the diameter of the widest part of the paw.


Get more tips for finding the perfect fit for your dog's adventure gear in How to Measure Your Dog.

Washing Instructions

Please secure all fasteners and wash with cold water on a gentle cycle with mild detergent. Please hang to dry and do not dry clean or use bleach on the product.