Giro Phase Bike Helmet

First and foremost, a mountain bike helmet should be comfortable and durable. The PhaseTM is true to the core-light, cool and durable enough to handle even the most daunting climbs and rock-strewn ribbons of singletrack. With the easy fit and adjustability of Roc Loc® 5 and the comfort of Super FitTM sizing, it's a top performer for riders looking for a low-profile helmet at a great price.