Bell MX-9 Adventure Mips Blackout HelmetBorn from Bell's extensive and legendary experience, the Bell MX-9 Helmet blends the best of their dirt and street knowledge into a feature packed middleweight ADV helmet. Equally at home on the street as it is in the dirt, the MX-9 panders to those riders who are out there pushing boundaries and not stopping when the road ends and the trail begins.The lightweight polycarbonate shell comes in three different sizes, mitigating bulk and providing a more comfortable fit. Bell's velocity-flow ventilation system keeps air flowing, forcing fresh air in and hot moist air out, while the removable and washable liner and cheek pads ensures you can keep sweat and bacteria build up at bay.The MX-9 ADV helmet can also transform into a more streetable helmet by removing the peak visor. Included side pods replace the visor where it mounts to the helmet, giving you sleek top-gun styling. When you hit the dirt and need the added protection of a pair of goggles, simply flip up the shield and throw 'em on. The MX-9 is designed to work with any dirt goggle out there.Truly a go-anywhere, do-anything helmet, the Bell MX-9 Adventure helmet fills a much needed gap in the market and is perfect for pros and beginners alike.Shell: Lightweight polycarbonate shell Equipped with Mips® safety system How does the Mips® safety system work? The brain is typically more sensitive to rotational motion than linear motion because it has shear properties similar to water or gel. When different parts of the brain move relative to each other because of rotational motion, the tissues can stretch, which can cause concussions or other brain injuries. Rotational motion is a common cause of concussions and more severe brain injury in oblique hits to the head. The Mips® safety system consists of a low friction layer mounted inside the helmet. In a crash, the low friction layer is designed to move slightly inside the helmet to help redirect forces away from the head. This is intended to help reduce the risk of brain injury. 3 shell sizes SM: XS and SM Helmets MD: MD and LG Helmets LG: XL and 2XL Helmets Shield: Integrated/removableface shield Nutrafog II anti-fog coating Anti-scratch and UV protection Peak: Two point removable peak Adjustable Ventilation: Velocity-flow ventilation system for cooling and comfort Adjustable mouth vent Interior: Moisture wicking, removable/washable air channeled comfort liner andcheek pads Speaker pockets EPS-lined chin bar Safety: ECE 22.06 ECE 22.06 is a helmet safety rating that extends and increases the testing requirements of ECE 22.05 (with 22.05 being a more modern, more comprehensive European alternative to DOT). With 22.06, 12 additional impact points are analyzed (now totaling 18) and impact speed is increased (from 7.5 to 8.2 m/s). Unlike DOT, every ECE helmet model must actually be tested by an independent lab before it receives 22.06 certification. certified Padded chin strap with D-ring closure and strap keeper Note: Helmet ships with clear face shield.