The Pact uses a durable ABS hard shell construction with Salomon’s EPS 4D foam liner offering up to 30% increased shock absorption over the industry standard. Vents at the front and rear ensure good airflow, the internal liner can be removed for washing and the ear pads can be taken off for spring riding. The Custom Dial allows the fit to be easily fine-tuned and as its multi-season certified it can be used for skate and cycle use too.Size GuideSmallMedium53-56cm56-59cmClick here for more information on our Size & Fit GuideVenting: PassiveSizing System: AdjustableWeight: 430gConstruction: Hard ShellSafety standard: EN 1077 Class B, EN 1078, ASTM F 2040 Additional SafetySalomon\'s patented EPS 4D technology works like a crumple zone, maximising energy absorption and protecting from oblique and vertical shocks.VentingPassive ventilation is non-adjustable but effective at cooling the head, allowing hot air to escape easily.Salomon’s Airflow Concept uses built-in channels within the EPS 4D liner which allows an even temperature and constant airflow between your head, your helmet, and your goggles.Sizing SystemThe Custom Dial fit system provides a quick, easy and effective adjustment for a precise and comfortable fit. Helmet shape is based on Salomon\'s oval fit.ConstructionThe injected ABS shell delivers high durability, shock absorption, impact deflection and resistance to penetration.