The all new SM5 Helmet from Alpinestars is the result of more than 5 years of intensive study, development and testing. Alpinestars have scrutinised every possible aspect to engineer a helmet that is safe and thoughtfully designed to deliver optimal protection and comfort. This lightweight helmet features a thermo-injected shell incorporating a special polymer blend enhances by varying degrees of thickness that is engineered to deliver the optimal combination of impact protection and light weight, while the 5 density EPS liner ensures the correct density in the correct area for enhanced impact absorption. Raised area with padding reduces the forces transmitted to the collarbone. Lightweight outer shell, in two sizes. Engineered to minimise the effects of oblique impacts. Multiple density inner liner. Maximised ventilation and high levels of heat transfer. Designed to direct air into the ports for enhanced flow. ECE 22.06 Certified About AlpinestarsAlpinestars recognises that the finest design and development are accomplished under complex conditions. The brand's engagement in Formula 1, NASCAR, AMA, World Motocross, and MotoGP has resulted in the development of cutting-edge technological equipment for the world's finest racers. Since its founding in 1963, Alpinestars has grown to become the world's top provider of top-grade racing products, motorcycle airbag protection, high-performance gear, and specialised footwear. Our team is always happy to give advice on motorcycle products and accessories - Talk to our team today!