Swamp Cooler™ Dog Vest

Sizing guide

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Happiness Guarantee

Happiness Guarantee


Swamp Cooler™ Dog Vest by Ruffwear® provides protection from the sun and cooling through evaporation. In warm climates, dogs typically stay cool by seeking shade during the heat of the day and moving around in cooler temperatures. The Swamp Cooler™ allows dogs to perform in hot climates. To activate the Swamp Cooler™ , soak in water, wring out and place on your dog. The light-colored fabric reflects solar radiation, while evaporating cooling pulls heat from the dog. The integrated leash portal allows leash attachment when the Swamp Cooler™  is worn over a harness. 


  • Relaxed fit for maximum shade with UPF 50+ coverage and side-release buckles for easy on/off
  • Three layer construction cools the core
  • Wicking outer layer reflects heat and facilitates evaporation
  • Absorbent middle layer stores water for evaporation
  • Mesh lining keeps dog dry and comfortable
  • Low-light visibility with reflective trim

XXS: Neck: 13.5 in. | Chest: 13-17 in. | Length: 10.25 in.
XS: Neck: 16.25 in. | Chest: 17-22 in. | Length: 12.75 in.
S: Neck: 19.75 in. | Chest: 22-27 in. | Length: 18 in.
M: Neck: 22 in. | Chest: 27-32 in. | Length: 21 in.
L: Neck: 26.5 in. | Chest: 32-36 in. | Length: 23 in.
XL: Neck: 28 in. | Chest: 36-42 in. | Length: 24.75 in.

*Always choose your size according to the latest measurement of your pup. We suggest rounding up to the next size if your measurement is near or over the maximum range, if your pup has a broad chest or thick coat or if you are in between sizes. If your pup usually wears size Small, this does not mean all size Smalls will fit the same as designers use their own sizing.