Total Mountain Freedom Is Now At Your Fingertips With The Liberty Helmet From Smith. Offering Best-In-Class, Ventilated Aerocore™ Protection Featuring Koroyd® With Adjustable Climate Control - The Liberty Excels In Any Condition, Giving You The All-Mountain Freedom You Deserve. Combining A Cozy Xt2® Performance Lining With Smith’S Own Vaporfit™ Adjustable Fit System Provides Riders With Exquisite, All-Day Comfort. Whether Riding In Bounds Or Off-Piste, The Liberty Gives You The Confidence To Explore Wherever The Mountain May Take You. Liberty Lightweight And Tough With Aerocore™ Construction Featuring Koroyd®Features:Protection:- Hybrid Shell Construction- Aerocore™ Construction Featuring Koroyd®- Low-Profile Adjustable Climate Control- 20 Vents- Mips® System Available In All ColorsFit:- Vaporfit™ Adjustable Fit System- Women’S Xt2® Anti-Bacterial Performance Lining- Snapfit Sl2 Ear PadsIntegration:- Airevac™ Ventilation- Audio Compatible Ear PadsSpecifications:- Certification: Astm F 2040, Ce En 1077:2007- Weight: 18 Oz / 500 Grams