The Vapor Climbing Helmet is very lightweight, making it easy to wear, and is designed to provide ample protection while keeping you cool and comfortable. Weighing just 155g, this helmet is made of two lightweight pieces that fit together smoothly. This helmet is very durable and is both UIAA and CE certified meaning it meets important safety regulations, so you can be confident that you're well protected while climbing.One of the best things about this helmet is its unique design, which allows for excellent airflow and ventilation which will ensure you stay cool and dry, even when working up a sweat on a challenging climb. The Vapor is made of an ALUULA composite which adds extra protection without making the helmet too heavy. The sides of the helmet are made of EPP foam, which not only looks cool but also provides excellent ventilation.To ensure a comfortable and secure fit, the Vapor helmet has an ultralight cord fit system that's very easy to adjust. If you're planning to climb in low light conditions, this helmet comes with streamlined headlamp clips that are ready to use whenever you need them.Ultralight design with large ventilation openingsMulti-material construction to minimise weight and bulk while maximising durabilityLightweight and packable cord fit system stows and adjusts easilyGeometric, open-air design allows unparalleled airflow and iconic silhouette Head torch compatible with replaceable clipsY slide adjustment S/M: 53-59cm (21-23 in)M/L: 58-63cm (23-25 in)UIAA and CE CertifiedWeight: S/M: 155g (5.5 oz) / M/L: 180g (6.35 oz)Material: Shell: Polycarbonate / Foam: EPP, EPS, ALUULAColour: Black