The Ruffwear Jet Stream efficiently cools dogs during light and fast, high-intensity adventures through shading and evaporative cooling. In warm climates, dogs typically stay cool by seeking shade in the heat of the day. The light and sleek Jet Stream uses shade-providing spandex over the back, while Ruffwear’s three-layer evaporative cooling chest panel disperses heat from the dog’s core. To activate the Jet Stream, soak in water, wring out, zip on your dog, and go.

Select Size

Measurement is around the widest part of the rib cage. If you need more help with sizing visit our Fit Guide.

13-17 in (33-43 cm)
17-22 in (43-56 cm)
22-27 in (56-69 cm)
27-32 in (69-81 cm)
32-36 in (81-91 cm)
36-42 in (91-107 cm)

Key Features

Additional Features

  • Three layer construction cools the core
  • Wicking outer layer reflects heat and facilitates evaporation
  • Absorbent middle layer stores water for evaporation
  • Comfortable inner layer transfers cooling effect to the dog
  • Zippered closure for high-performance fit
  • Made in Vietnam

Washing Instructions

  • Wash in cold water, gentle cycle
  • Use mild detergent
  • Hang to dry
  • Do not bleach, iron or dry clean

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

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Poor sizing

Beau and I usually love our ruffwear products. Own almost everything they make. We were so excited to get the Jet stream for our biking and camping adventures. I measured him multiple times. The size chart says 31 inches is a size medium. When the vest came in the mail we couldn't wait to try it on... it wouldn't even zip. Now we have to spend more money to send it back. Not impressed. The instructions even say if your dog is between sizes to go with the smaller size. The quality was great as usual and the color was nice. Just very disappointing that sizing is not correct.



LOVE this product! Purchased the swamp cooler last year for my cattle dog after moving from New England to VA, but wanted to try the jet stream since my dogs frequently wear harnesses or packs. Really liked how easy it was to layer this cooling vest with other ruff wear products. Darwin was MUCH happier running around in his jet stream in the hot humid Virginia weather than he normally is with his black coat. Strongly recommend this product if you're active with your pups in warm weather!


A life saver

I bought this vest because we live in the Mojave desert and it gets pretty hot during summertime (triple digits happens a lot!). My boy is only 10 months so he needs to exercice to spend his puppy and Dalmatian energy. That vest is literally a life saver because even if we're going for short walks, it gets hot really fast and the jet stream helps my puppy to stay cool and to put him out of danger of a heat stroke. A must have!


Excellent!! Does run small.

GREAT concept Ruffwear! Luke cannot thank you enough! He always had trouble with the heat if it hit 79 degrees inside and now as a senior with health issues, it is critical he is comfortable. I just rinse it in cold water and gently squeeze out twice a day (not wring). After 5 minutes, he is resting comfortably without panting. Although his girth is Medium, I got the Large for comfort and am glad I did. It fits snug, but not tight and we love the large leg openings for freedom of movement. Super easy to put on and so far the zipper works great. Cannot recommend highly enough. Love it so much I just bought a second one in the other color!

Whiskey and Remy

Good quality

They are lightweight and comfortable on the dogs. Easy on/off design. Good price for the quality.