Maximum coverage open face mountain bike helmet The Dropframe Pro Helmet is a game-changing, open-faced 3/4 enduro helmet. It features Mips®, the BOA® fit system for class-leading fit and security, increased ventilation, plus an ionic ® anti-microbial 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.
