The Swamp Cooler Zip is a lightweight, streamlined solution for keeping dogs cool on hot-weather adventures. The snug-fitting vest with our Swamp Cooler Tech in the chest and belly panel uses moisture to help pull body surface heat away through evaporative cooling. The stretch fabric ensures a close fit for effective cooling and provides UPF 50+ sun protection. Just soak the vest in water, zip on your dog, and go.