Maximum coverage open face mountain bike helmet Featuring Mips® and the BOA® Fit System, the Dropframe Pro Helmet is a revolutionary 3/4 enduro helmet that offers top-of-the-line fit and protection. Its enhanced ventilation, ionic+® anti-microbial liner and cheek pads, and added coverage for the ears, jaw, and back of the head make it the ultimate open-face helmet for MTB riders seeking complete coverage and comfort. BOA® Fit System for class-leading fit and security Mips® added protection system has been proven to reduce the rotational motion when implemented in a helmet by absorbing and redirecting energies and forces otherwise transmitted to the brain 3-position adjustable visor compatible with goggles Removable under visor GoPro mount included Big Bore front vents include eyewear storage recess Increased ventilation and decreased surface contact area improve cooling Ionic+® anti-microbial liner and cheek pads to optimize fit FIDLOCK magnetic closure Meets the NTA-8776 E-bike helmet certification standard