Chillybuddy Cooling Coat

  • $95.95
    Unit price per 

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Editors’ Choice Award from Pet Product News International

Reduce your dog’s coat temperature by an average of 40% during hot weather with the Chillybuddy!

Chillybuddy is a light-weight mesh cooling jacket designed specifically to keep a dog comfortable in hot weather and reduce the effect of exposure to the sun. The jacket’s outer layer is made of woven synthetic with an aluminized finish. The twisted strands of the fabric function like thousands of tiny mirrors, reflecting all wavelengths of light away from the surface. The jacket is lined with a cotton mesh. Both layers allow air to pass freely through. The cotton mesh liner can be placed in water to provide substantial cooling. Unlike other wet jackets, the evaporation occurs in the shade of the outer layer, creating an unusually cool environment on the hottest days.

Chillybuddy Cooling Jacket can significantly lower coat temperature and provides a shield from direct sunlight.

On a 90° F day, wearing a Chillybuddy Cooling Jacket can lower the coat temperature from 145° F to 103° F, a reduction of almost 30%.

Soaking the Chillybuddy Cooling Jacket in water to dampen the cotton lining before use can lower a dog’s coat temperature by a further 20 degrees—from 103° F to 83° F. Cotton has been repeatedly shown to be the best fiber to hold water for evaporative cooling. Synthetic wicking fabrics are useless in this application because dogs do not sweat.

For light-haired dogs, a Chillybuddy Cooling Jacket also protects the underlying skin from sunburn.

Chillybuddy Cooling Jacket can protect coats of show dogs from bleaching by the sun — which often occurs as summertime reddening or browning, especially at the tips of the coat.

The Chillybuddy Cooling Jacket was field-tested in mountain terrain and open-field hunting.

The Chillybuddy Casual is designed for the dog who enjoys playing, walking or even running outside in basic city or suburban conditions. Easy to put on, easy to take off, the Chillybuddy will always keep your dog cool on hot days. Sizes range from petite to xx-large. Custom order is also available.  It fits over the dog’s head and a Velcro strap secures the coat at the base of the neck and underneath the belly. The stomach strap is made from nylon and stretches. 

Trim Color is a high visibility yellow trim available. 

How to Measure Your Dog for the Chillybuddy:
Place your dog in a standing position. Measure the widest part of the neck. Next, measure from the base of the neck (neck joins the body) to the base of his tail (tail joins the body). Measure the circumference of the dog’s chest, just behind his front legs, at its widest point.

The back length is the most important measurement. The neck is adjustable, so it is not as important as the back measurement. A bit of excess on the back length is preferred over the coat being too short.The Chillybuddy has space for adjustment in the stomach and neck straps, but it should cover your dog’s back. If you need assistance, please contact us.

SIZING (Neck/Back Length/Girth)*:
Petite: 11-15"/13"/16-20"
XS: 12-15"/16"/18-22"
SM: 15-18"/19"/22-24"
M: 17-20"/21"/22-29"
LG 24: 21-25"/24"/24-31"
LG 27: 21-25"/27"/24-31"
XL: 26-29"/31"/26-34"
XXL: 27-30"/33"/33-39"

Breed Sizing:


Back Length

Base of Neck Circumference


Example Breeds (Avg. sized adults)





Toy breeds: Chihuahua, Yorkie, Toy Poodle





Bischon Frise, Miniature poodles, Shih Tzu





Beagles, Miniature Poodles










Labs, Golden Retrievers, Australian Shepherds, Border Collies





Large Australian Shepherds, Labs, Golden Retrievers





Large German Shepherd Dog





Great Dane, Small Wolfhounds, Newfoundland

How to Measure your Dog:
NECK: The circumference of the dog’s neck at its widest point.
BACK LENGTH: The distance between the collar and the base of the tail.
GIRTH: The circumference of the dog’s chest at its widest part.Dog_Measuring

It is important to note that the back length is the most important measurement of the three. The Chillybuddy Cooling Jacket provides room for adjustment in the girth and neck straps so it is crucial that the Chillybuddy Cooling Jacket you get covers the length of your dog's back. When in doubt, a little excess on the back length is better than having it be too short. If you have measured your dog and still have questions, please don't hesitate to contact us at We want your Chillybuddy to fit your dog as well as possible!

Chillybuddy Size Chart:


Frequently Asked Questions:

1) Does the Chillybuddy Cooling Jacket really work?
Yes, six month of pre-release testing and a year of controlled market exposure have yielded zero performance complaints and a number of kudos. Our measurements show a drop in the dog’s coat temperature by an average of 40%. beyond that, our observations and those of completely independent observers testify to the behavioral and performance changes in the dogs. The fact that the Mid-Atlantic FEAM USAR teams elected to standardize on our jacket after testing is a strong confirmation, and our consistently satisfied customers and positive testimonials further attest to the Chillybuddy Cooling Jacket’s effectiveness.

2) How does the Chillybuddy Cooling Jacket work?
The outer layer reflects 70% of the incoming infrared radiation. The inner layer does two things: first, it prevents that dog’s body heat from reflecting back to the dog. Second, when wet it provides additional evaporative cooling for the dog. The outer layer reflective layer similarly protects the evaporative layer from absorbing heat from the sun and environment. The combination of physical effects is the basis for the patent claim and what sets the Chillybuddy clearly apart from every other dog cooling product. The jacket works better than other solutions because the evaporative cooling mechanism emphasizes open airflow rather than large amounts of water. Consider that if you are just a little damp and step into airflow from a strong fan, you are quickly cooled. But you can be dripping wet, and if the air is not moving, you won’t be cooled effectively. Air is 70% of the evaporative cooling effect; other jackets, in addition to missing the reflective protection, miss this key point.

3) What size of Chillybuddy Jacket should I get for my dog?
Our sizes range from super petite to xx-large. You can find the size chart and instructions on how to measure your dog on our website. We always recommend that when in doubt contact us with your dog’s measurements (neck, girth and back length) for our advice.

5) Is Chillybuddy Cooling Jacket a warming jacket as well?
No, the Chillybuddy Cooling Jacket will not warm your dog in a winter day. For those days we offer the Chillybuddy Winter Jacket.

6) Does the Chillybuddy Cooling Jacket work inside?
Technically, yes. Even though the dog is not out in the sun, there is still some infrared radiation inside that will get reflected by the outer layer of the Chillybuddy Cooling Jacket. Similarly, on a warm nighttime walk, the jacket can be very effective in cooling the dog. Infrared radiation is still bouncing around even though your eyes see darkness…the heat you feel is that infrared. On a 90 degrees pitch black night, the jacket will have the same effect as during the day. It’s also the best reflective safety jacket you can find, since it reflects more light than retroreflective materials.

7) Can I wash the jacket?
Yes, all Chillybuddy products should be hand washed gently. Line drying is recommended.

8) It’s silver. Does it attract the sun?
No. Physically speaking, there is nothing that attracts the sun, It seems to “attract” the sun because it’s so much brighter than the surrounding materials. But that is because it is actually reflecting the light back to you rather than absorbing it. Non-reflective materials absorb different parts of the spectrum of light, which is why they have certain colors (the spectra they don’t absorb are the colors we see them as). A flat black object absorbs all bandwidths of radiation, which is why black seats in a convertible in Arizona are not very popular! It’s also way the flat black coat on a Doberman is hotter than the shiny black paint on a car. The difference in surface reflectivity makes the difference, but both are very, very hot.

9) Does the Chillybuddy Cooling Jacket need to be in the freezer before using it?
No. We recommend that you only get the jacket dampened when it is hotter than 80 degrees. Freezing will have a sort of instantaneous effect, but the low mass of the jacket will quickly go to the ambient temperature of the surroundings. The cooling is accomplished by evaporation as described previously.

10) Should I get the Chillybuddy Cooling Jacket Casual or Sport style for my dog?
Unless you have a hunting dog, or a dog that runs in the woods constantly, we normally recommend the casual style. Other than hunting dogs, the sport style is used by Wilderness Search & Rescue dogs, or by dogs that are really running in the woods and fields.

11) Why is the Chillybuddy Cooling Jacket different than the other cooling jackets?
The Chillybuddy Cooling Jacket is the only cooling jacket that combines multiple physical processes to first protect and then provide active cooling. The evaporative layer is protected from environmental heat, so it can absorb heat primarily from the dog, not from the sun pounding on it. Most important, while doing all of the foregoing, the Chillybuddy Cooling Jacket does it with unmatched airflow. It’s also very important to note that use of just the reflective layer, as one jacket does, may actually be somewhat dangerous. Without the lining layer that is part of the Chillybuddy Cooling Jacket patent, the inside of the reflective layer actually insulates the dog by reflecting back the dog’s own radiated heat. Only with an internal layer to mask off the inside of the reflective material can the jacket be truly protective.