



LZRD X Mission Cooling Helmet Liner
Stay Cool Under Pressure.
The Cooling Helmet Liner delivers instant, long-lasting relief under your hard hat or helmet — no matter how intense the conditions. Just wet it, wring it out, and snap to activate powerful, chemical-free cooling that lasts up to 2 hours. Designed for athletes, workers, and anyone exposed to the heat, it cools up to 30° below average body temperature and fits comfortably under any helmet.
Lightweight, breathable, and UPF 50-rated for sun protection, it’s odor-resistant, machine washable, and built for performance — on the field, on the job, or wherever you’re pushing your limits.
Lower Temperature
Reduces body temp by up to 1°F
Reduce Heart Rate
Lowers heart rate by 18 bpm
Boost Endurance
Increases endurance by 12%
Tested at the Korey Stringer Institute, our cooling tech is scientifically proven to perform—so you can too.

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