The SIROCCO is designed to respond to the needs of climbers and mountaineers for reduced weight and for protection. Its head-covering shape, lower in the rear, offers reinforced protection. Optimized volume on the head, along with excellent ventilation, provide maximum comfort. . . . Ultra-light design: 170 g. . hybrid construction with a shell in EPP (expanded polypropylene) foam and rigid crown injected with EPS (expanded polystyrene) foam. . Head-covering design for optimal protection against lateral and rear impact. . Maximum comfort in action:. . wide holes, for excellent ventilation. . completely adjustable, thanks to the adjustable headband and chinstrap. . magnetic buckle facilitates fastening the chinstrap (Petzl patent). . compatible with the VIZION eye shield. . two hooks and rear elastic for attaching a headlamp. . Material(s): expanded polypropylene (EPP) shell, polycarbonate crown, expanded polystyrene (EPS) liner, polyester webbing. . Certification(s): CE EN 12492, UIAA. . Product comes with protective storage bag and spare foam. .