Fox racing proframe full face mtb helmetthe fox racing proframe full face mtb helmet boasts an incredible level of protection, certified to dh standard, ideal for when you're crushing downhill trails. But it's fox's lightest full face too, making it at home across any trail. The excellent protection levels come by the way of a combination of safety enhancing technologies. It starts with the dual density varizorbtrade eps liner. Should you push your limits too far and crash, then it's this liner that absorbs and dissipates any impacts to your head. This is complemented by the brain protecting multi directional impact protection system mips, more on that further down. But suffice to say it offers superb head protection. With safety leading the way the ventilation is also way out in front of its rivals. The proframe has 15 big bore air intake vents and 9 exhaust vents, giving you an almost open face feel as air rushes in and out. Fox have even engineered the visor to enhance airflow. When you're pedalling to the top of the trail this is, of course, invaluable to keep you cool, and when you reach the top you'll be fresh and ready to push your limits on the way down.trail riding techfeaturing fox racings patent pending integrated chin bar, the proframe really does have plenty to shout about when it comes to safety. But it's comfortable too. An anti microbial liner wicks away moisture and prevents the build up of bacteria, keeping itchy helmet issues at bay. While for fast entry and exit, a fidlockreg snap helmet buckle secures and releases with a satisfying snap and it's easy to use even with gloves. What is mips?multi directional impact protection system mips is a proven system that reduces the rotational forces on the brain when you're involved in a crash. The forces are absorbed and redirected to prevent them from being transmitted to the brain. Mips is a brain protection systemrotational motion can cause brain injuriesthe low friction layer allows a sliding movement of 10ndash15 mm, in all directions, reducing rotational motion to the brain during impactfeaturesmips technology proven to reduce rotational motion, absorbing and redirecting energies and forces otherwise transmitted to the braindual density varizorb eps liner provides improved protection by spreading forces of impact across a wider areafox integrated chin bar secured to the helmet with patent pending system meets astm downhill standardshighly breathable liner system is moisture wicking and has anti microbial properties15 big bore vents and 9 exhaust vents keep you cool and aid in moisture managementsecurely fixed visor is positioned to channel airflow into the big bore ventsfidlockreg snap helmet buckle provides quick and secure entry and exit while wearing glovesweight 750g size mediumastm f1952 including chin bar rigidity test en 1078 as nz 2063 cpscbuy fox racing protection from chain reaction cycles, the world's largest online bike store.