Ruffwear Jet Stream Cooling Vest Lagoon Blue - Lightweight Breathable Cooling Vest for Active Dogs

Keep your dog cool, comfortable, and adventure-ready with the Ruffwear Jet Stream Cooling Vest in Lagoon Blue. Designed for high-energy activities like hiking, trail running, and mountain biking, this lightweight vest helps regulate your dog’s body temperature in warm weather. Just add cold water, wring out, and go! The advanced 3-layer construction wicks away heat and delivers active cooling right where your dog needs it most. With a snug yet stretchy fit, easy zip closure, and reflective trim for low-light safety, it’s the perfect gear for dogs on the move.

Water-Activated Cooling Technology – Simply soak in cold water and wring out for fast heat relief, ideal during outdoor adventures.

Three-Layer Design – Absorbs, stores, and releases coolness to your dog’s chest and core, helping manage body temperature effectively.

Snug, Comfortable Fit – Stretchy top panel and zippered closure provide a secure, flexible fit even for very large breeds like Rottweilers and American Bulldogs.

Outdoor-Ready Safety – Reflective trim boosts visibility in low light; includes an integrated loop for Ruffwear’s Beacon safety light.

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.