BLACK DIAMOND VECTOR HELMETA revolutionary helmet that's ideal for long routes, alpine climbs and other weight-sensitive missions, the Black Diamond Vector Helmet combines lightweight protection, excellent ventilation and "barely-there" comfort like never before. The geometric, co-molded EPS foam and polycarbonate shell provide full-coverage protection while remaining incredibly lightweight and comfortable, and the generous ventilation ports keep air flowing on warm days. The ratcheting suspension tucks away for easy storage in your pack, and when the sun gets down before you do, the Vector's in-mold headlamp clips provide an ultra-secure attachment.FEATURESCo-molded EPS foam with polycarbonate shellLarge ventilation ports provide max airflowRatchet adjuster with molded push buttonsIn-mold headlamp clips for ultra-secure attachmentTuck-away suspension makes for compact storageAvailable in two sizes