The updated Black Diamond Vapor helmet’s two-piece construction contains a layer of super-light ALUULA composite under the polycarbonate crown for added protection and reduced weight. Molded EPP foam makes up the sides, providing ample venting with the same sleek aesthetic. An ultralight cord fi t system makes adjustments and fi t easy to fi ne-tune. Streamlined (and replaceable) headlamp clips are ready for alpine starts or after-dark raps.