Our superlight, go-anywhere helmet got even lighter. The updated Vapor helmet features two-piece construction for added protection and reduced weight, while an ultralight cord fit system makes fit adjustments easy to fine-tune. Our superlight, go-anywhere helmet got even lighter. The updated 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 fit system makes adjustments and fit easy to fine-tune. Streamlined (and replaceable) headlamp clips are ready for alpine starts or after-dark raps. Features: Ultralight design at 155g Multi-material construction to minimize weight and bulk while maximizing durability Lightweight and packable cord fit system stows and adjusts easily Geometric, open-air design allows unparalleled airflow and iconic silhouette UIAA and CE Certified Tech Specifications: Materials: Shell: Polycarbonate Foam: EPP, EPS, ALUULA Weight: 155g Warning: This product can expose you to chemicals including Bisphenol A (BPA), which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.