MISSION Cooling Helmet Liner - Lightweight & Breathable - Cools Up to 2 Hours - UPF 50 Sun Protection - Machine Washable (Charcoal) — Open-Box, 13% Off

COOL DOWN TO DO MORE - On the field, on a bike ride, or at the construction site, this helmet liner keeps you comfortable, even under bulky helmets of all kinds. Made with breathable fabric, it cools you down instantly when activated with water.

PERFORMANCE FEATURES - This lightweight helmet liner provides UPF 50 sun protection and is designed with a mesh crown for enhanced breathability. It’s ultra-compact and can fit in your back pocket—perfect for job sites or on the go.

THE COOLEST TECHNOLOGY - With HydroActive Wet-to-Cool Technology, our fabric cools up to 30 degrees below average body temperature in under 1 minute & stays cool for up to 2 hours. Activate & reactivate in 3 steps: wet it, wring it out & wave it.

WASHABLE & ODOR FREE - This helmet liner is machine washable and resists unwanted odors for lasting freshness. The proprietary cooling technology will never wash out of the fabric.

UNISEX - The universal fit design is made for both men and women and provides all-day comfort.

The Cooling Helmet Liner is designed to provide a cool and comfortable layer under your hard hat or helmet. Made from innovative fabric that cools up to 30° when activated by water or sweat, this liner ensures comfort in hot conditions. Lightweight and breathable, it is the perfect solution for staying cool while you achieve your best on the field, whether you're playing ball, working in construction, or on the job site. Cool More. Do More.