The Fox Proframe Helmet is the lightest and most breathable full face helmet Fox has ever created. Designed to perform at the highest levels for aggressive all mountain riders and enduro racers, it packs DH certified protection into a superlight shell via our patent pending, fully integrated chinbar. With 15 Big Bore intake and 9 exhaust vents, the Proframe Helmet offers open face level airflow and breathability to keep you cool on even the longest and most challenging climbs; and once you reach the top, it gives you the confidence to ride to your limits on even the toughest of descents. Our lightest DH approved full frame helmet at 750 grams for a size medium. Fox Integrated chinbar is secured to the main helmet structure with our patent pending system. Highly breathable liner system is moisture wicking and has anti-microbial properties. 24 Big Bore vents make Proframe one of the lightest and most breathable DH approved helmets. Fixed visor is positioned perfectly to ram maximum air flow into the Big Bore vents. Fidlock SNAP helmet buckle provides quick entry and exit with maximum security. Proven MIPS multiple impact protection system reduces rotation forces in a crash. Dual density Varizorb EPS liner provides improved protection.