Klein Tools Cooling Helmet Liner (M/L) delivers rapid cooling relief for up to 2 hours when wet. Designed to be worn comfortably under hard hats and safety helmets. Lightweight, breathable mesh fabric improves airflow, is machine washable, and is reusable.
Cools instantly when activated, up to 30 degrees below body temperature
Wicks away sweat from the head for up to 2 hours when wet
Activate / Reactivate: soak with water, wring out excess water, snap 3-5 times to activate
Mesh fabric at crown expands airflow for maximum breathability
Front fabric is 92 Polyester, 8 Spandex
Back fabric is 100 Polyester
Machine washable and reusable