The Petzl BEANIE Protective Helmet Liner is a high-performance under-helmet cap engineered to keep workers warm and dry in cold, damp, and windy conditions. Crafted from advanced PrimaLoft® fabric, it provides excellent thermal insulation without adding excess bulk under safety helmets. Its seamless, low-profile design eliminates pressure points for all-day wear, while breathable, moisture-wicking properties efficiently pull sweat away from the skin. Built with 43% recycled polyester, this eco-friendly, reversible cap is machine washable and maintains its insulating warmth over long-term field use.

• PrimaLoft® Thermal Insulation: Advanced PrimaLoft® fabric delivers superior warmth and quick-drying protection in cold, wet environments.

• Seamless Under-Helmet Fit: Low-profile, seamless construction sits comfortably under safety helmets without creating pressure points.

• Moisture-Wicking & Breathable: High-breathability weave efficiently wicks sweat away from the head during intensive physical work.

• Eco-Friendly Construction: Environmentally conscious design made with 43% recycled polyester for long-lasting sustainable performance.

• Easy Maintenance & Care: Machine washable at 30° C while fully retaining its thermal efficiency and elastic shape.