"Easy to use and easy
""Easy to use and easy to install.""
Summer’s heat shouldn’t stop you from enjoying the outdoors. With the DIY Backpack Misting and Drinking Retrofit Kit, you can transform your favorite hydration-ready backpack into a powerful dual-function cooling and hydration system. Perfect for hikers, cyclists, runners, and adventurers, this kit offers a do-it-yourself solution that delivers refreshing mist and hands-free hydration in one compact package. Designed for ease of use and compatibility, this kit integrates seamlessly with your existing hydration pack, letting you stay cool and hydrated wherever your adventures take you.
DIY Retrofit Design: Convert your hydration backpack into a personal cooling system—no need to buy a new pack.
Integrated Misting and Drinking System: Enjoy refreshing mist and easy access to hydration from the same system.
Flexible Control Options: Adjust misting intensity using the 8-speed wireless remote or the manual 4-speed control for convenience on the go.
Pack-to-Pack Flexibility: The PCS pump can easily be moved between backpacks, allowing you to adapt to different conditions and pack sizes.
Plug for Standard Hydration: Includes a plug to seal off the misting feature, letting you revert your pack back to a standard hydration system when the misting feature isn’t needed.
Upgrade Your System: Remove the pump and pair it with the Quad Nozzle Kit for stationary misting, perfect for cooling down camp, patios, or other outdoor spaces.
Omni-Directional Mist Nozzle Purge Valve: Eliminates unwanted air from the system for fast misting startup. When opened, it emits a strong, straight stream, ideal for giving your dog a drink without bending down, cleaning camp gear or bike chains, and washing your hands while on the go.
Effortless Integration: Compact PCS pump fits neatly into your hydration pack without adding unnecessary bulk.
Optimized for Cycling and More: Lightweight design ensures you can tackle long rides, runs, or hikes without compromising performance.
Rechargeable Battery: The built-in battery powers the misting system and doubles as a portable USB charger for phones or music devices.
Long-Lasting Performance: Keeps you cool and hydrated during extended outdoor activities.


The DIY Backpack Misting and Drinking Retrofit Kit is a game-changer for summer cycling, helping you stay refreshed and hydrated without stopping. The lightweight and unobtrusive design makes it perfect for long rides, hot trails, and tough conditions. For runners and hikers, the system delivers the same dual-function performance, keeping you comfortable in even the most extreme heat.
This kit works with hydration-ready backpacks and requires a compatible water reservoir (not included). Simply retrofit the PCS pump and misting system into your existing pack for a personalized cooling and hydration solution.
This DIY kit is more than just a convenient add-on—it’s essential gear for anyone taking on intense heat. From cycling and trail running to desert hiking and endurance sports, the Backpack Misting and Drinking Retrofit Kit provides reliable cooling and hydration that you can customize to meet your needs.
For larger cooling needs, remove the PCS pump and pair it with the Quad Nozzle Kit for stationary misting at campsites, patios, or workspaces.
If you’re not ready to retrofit your existing backpack, consider upgrading to a fully integrated system with the ExtremeMist Personal Cooling System Backpack. This all-in-one pack comes pre-assembled with the PCS pump and a premium hydration reservoir, giving you instant cooling and hydration right out of the box.
Warranty information can be viewed here.
Overall rating: 4.8 / 5 from 10 reviews.
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""Easy to use and easy to install.""
"Very happy with my retro mister kit. I have a couple of Frenchie pups that really get bent out of shape anytime temps get over 80°. This mister kit has really extended their tolerance . I bought the retro kit and paired it with a Camelbak waist pack that has a 1.5 liter water reservoir. The pump and bladder fit perfect. I still trying to find the perfect setup thinking of adding a couple of more misters to my setup."
""Very happy with my retro mister kit. I have a couple of Frenchie pups that really get bent out of shape anytime temps get over 80°. This mister kit has really extended their tolerance . I bought the retro kit and paired it with a Camelbak waist pack that has a 1.5 liter water reservoir. The pump and bladder fit perfect. I still trying to find the perfect setup thinking of adding a couple of more misters to my setup.""
""Worked well during hot days at Disneyland while waiting the long lines.""
""Amazing product. I always struggle in the heat while hiking and now I feel more at ease and more prepared! So grateful to have found this product. Highly recommend!""
""I found the installation to be simple and quick especially after watching the video in the advertisement. I got the quad nozzle setup for our RZR and it’s awesome! I added a couple small valves to shut off the nozzles in the rear if we have no passengers.""
""Liked it so much I bought two and gave them as presents. Both receivers of the gift are thrilled""
"It’s worked great for cycling here in Las Vegas. Super easy to put together. Still fine tuning placement of the misting nozzle for optimum coverage while riding."
"Easy ordering, fast delivery."
"Liked it so much I bought two and gave them as presents. Both receivers of the gift are thrilled"