Maximum coverage open-face mountain bike helmet The Dropframe Pro Grid Helmet is a game-changing open-face 3/4 enduro helmet. It features Mips® the BOA® Fit System for class-leading fit and security increased ventilation plus an Ionic+® antimicrobial liner and cheek pads to optimize fit. With its increased coverage for the ears jaw and back of the head this MTB helmet provides the most complete coverage we offer in an open-face helmet. In the Box One thin cheekpad set and one thick cheekpad set One thin headliner and one thick headliner Removable under visor GoPro mount included Key Features Mips® equipped Dual-density Varizorb™ EPS provides improved protection 8 intake vents and 7 exhaust vents keep you cool Specifications 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 Dual-density Varizorb™ EPS provides improved protection by spreading forces of impact across a wider area 8 Big Bore vents and 7 exhaust vents keep you cool and aid in moisture management The securely fixed visor is positioned to channel airflow into the Big Bore vents Removable antimicrobial and moisture-wicking liner Includes additional pads for custom dialed fit Size Sizes: small medium and large see size guide for measurements How to Dial Your Fit BOA® dial: micro adjustments - counterclockwise to loosen clockwise to tighten - allows for a precisely dialed fit. Adjust while wearing the helmet. Back cradle: four points of adjustment move the cradle up or down your head to ensure the best fit possible. Comes with additional cheek pads and liners for a personalized fit Select thinner or thicker pads to achieve a tighter or looser fit according to your preferences Care For care instructions see our Helmet Care Guide Note: Avoid exposure to aerosol sprays like bug repellent and sunscreens as they can cause your helmet's finish to peel Materials: 22% ABS 21% EPS 15% polycarbonate 13% polyurethane 9% pa 14% nylon 6% polyester