MISSION Cooling Helmet Liner Safari Camo — Lightweight, Breathable UPF 50 with Wet-to-Cool Tech (2 hr)

Designed to fit under any helmet—from cycling and climbing helmets to hard hats—the MISSION Cooling Helmet Liner blends breathable construction with quick-activation cooling for hot, active days. Its mesh crown and slim profile keep weight and bulk to a minimum while the HydroActive fabric cools rapidly when wet and can be reactivated repeatedly. The liner is machine washable and resists odors, making it a practical addition to work kits, outdoor gear, and athletic packs.

How does the cooling work and how long does it last?

The liner uses HydroActive Wet-to-Cool Technology: wet the fabric, wring it out, and wave it to trigger evaporative cooling. Temperatures on the liner can drop significantly within a minute and the cooling effect can last up to about two hours depending on conditions. Reactivation is simple—just repeat the wet-wring-wave process whenever you need more cooling.

• Wet, wring, and wave to activate evaporative cooling
• Rapid surface temperature drop in under one minute
• Cooling duration up to two hours per activation
• Can be reactivated repeatedly throughout the day

Will it fit under my helmet and stay comfortable during activity?

The slim, unisex design fits under a wide range of helmet styles without creating pressure points or bulk. A mesh crown increases airflow while the lightweight fabric minimizes heat retention. Because it packs small, you can tuck it into a pocket and pull it out when temperatures rise.

• Low-profile shape fits under cycling and safety helmets
• Mesh crown for enhanced breathability and airflow
• Lightweight, snag-free fabric for long-wearing comfort
• Compact enough to carry in a back pocket or tool pouch

Does it protect from the sun and how do I care for it?

The liner is rated UPF 50 to block a substantial portion of ultraviolet rays on exposed areas, adding sun protection beneath an open or ventilated helmet. Care is simple—machine wash on a gentle cycle and tumble dry low or air dry. The cooling technology is engineered to remain effective after repeated washing and the fabric resists lingering odors.

• UPF 50 fabric for added sun protection
• Machine washable; cooling properties remain after laundering
• Odor-resistant construction for repeated use without smell buildup
• Durable materials suitable for rugged, daily wear

Who is this for? The MISSION Cooling Helmet Liner is made for outdoorspeople, tradespeople, and athletes who spend extended time in hot conditions and need a low-profile, reusable cooling solution. It’s ideal for cyclists, construction workers, hikers, landscapers, and anyone who wears a helmet and wants quick, on-demand cooling plus sun protection. If you need compact comfort that fits under protective headgear, this liner offers easy activation, reliable breathability, and portable convenience.