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The Ruffwear Core Cooler™ is an add-on that cools dogs, adds additional support when lifting and assisting, and further stabilizes packs and harnesses. This three-layer chest panel uses evaporative cooling to efficiently pull heat from the dog’s core during warm temperatures and high intensity activities. To activate, wet the Core Cooler with water and wring out. The Core Cooler easily attaches to Ruffwear harnesses and packs using hook-and-loop sleeves:

Check out our Best Selling Summer Gear.

Select Size

Use this fit guide to select the appropriate size for your dog. Measurement is around the widest part of the rib cage.

17-22 in (43-56 cm)
22-27 in (56-69 cm)
27-32 in (69-81 cm)
32-42 in (81-107 cm)

Key Features

Additional Features

  • Provides load dispersion and stability
  • Made in Vietnam

Washing Instructions

  • Secure fasteners
  • Hand wash
  • Mild detergent
  • Air dry

Trail Tested Promise

All of our products are rigorously field tested and we proudly guarantee against defects in materials and craftsmanship.

Great Companions

Ratings & Reviews

Customer Reviews

Based on 18 reviews
5 Star
72% 
13
4 Star
11% 
2
3 Star
11% 
2
2 Star
6% 
1
1 Star
0% 
0
Customer Photos
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LT
11/24/2018
Leslie T.
United States

Just enough when warm!

Good for when my girl doesn't need her overall cooler but keeps her core cool when she gets warm from her walks.

AF
11/22/2018
Araya F.
United States

Perfect Fit for Standard Poodle

The core cooler did it's job perfectly. When Mocha was wearing it, even in high humidity and 90 degree temperatures, she wouldn't even be panting. Many people have been complaining about fit, but the advertised size works perfectly with the same size of Webmaster, on my deep chested standard poodle. If you have a standard poodle, don't be afraid to buy the same size Core Cooler as harness.

AF
11/22/2018
Araya F.
United States

Perfect Fit for Standard Poodle

The core cooler did it's job perfectly. When Mocha was wearing it, even in high humidity and 90 degree temperatures, she wouldn't even be panting. Many people have been complaining about fit, but the advertised size works perfectly with the same size of Webmaster, on my deep chested standard poodle. If you have a standard poodle, don't be afraid to buy the same size Core Cooler as harness.

CH
11/09/2018
Colleen H.
United States

Works

The core cooler is great. It clearly helps keep my pupper comfortable on hot days when riding in his Dogwarts Express...the trailer behind my bike. My only complaint is that the middle, belly, hook and loop strip is too wide. If the dog’s chest is much deeper at the front than it is at the back, the cooler’s back strap is too long (wide? Across bellywise) to fit the harness strap properly. Leaving the Velcro partially undone works, but I’d rather they make the cooler straps fit the harness strap when it’s adjusted smaller.

Colleen H. verified customer review of Core Cooler™
SH
10/22/2018
SANDI H.
United States

Hikes

Great for Summer Hikes! Using with Approah Backpack!