Ruffwear Swamp Cooler Vest Graphite Gray - Lightweight Breathable Cooling Vest for Active Dogs

Help your dog stay cool, safe, and ready for any warm-weather adventure with the Ruffwear Swamp Cooler™ Cooling Vest in Graphite Grey. This form-fitting vest uses evaporative cooling technology to draw heat away from your dog’s body, keeping them comfortable during hikes, walks, and outdoor play. Featuring a breathable, three-layer design and UPF 50+ sun protection, the vest is easy to activate—just soak in cold water, wring out, and zip on. The lightweight stretch fabric moves with your dog, so they stay cool without sacrificing comfort or mobility.

Advanced Swamp Cooler Tech – Three-layer construction uses evaporation to regulate body temperature and protect against overheating.

Sun Protection Built In – UPF 50+ rated to shield your dog from harmful UV rays during long days outdoors.

Snug, Streamlined Fit – Zippered closure and stretch spandex ensure effective, close-contact cooling while allowing full range of motion.

Simple to Activate – Just soak, wring out, and zip on to start cooling instantly—perfect for summer hikes, trail runs, or beach days.

What you'll need:
A soft tape measure
A calm dog (treats help!)
A friend to assist (optional, but handy!)

You will need to measure your dog's chest girth. 

Chest Girth (Widest Part of Rib Cage):

Find the widest part of your dog’s ribcage—usually just behind the front legs. Wrap the tape measure around this area to get the chest girth.

Tip: Keep the tape snug but not tight. You should be able to slip one or two fingers between the tape and your dog’s body.