Always under development. With a design and materials used in aerospace engineering, it was possible to bring the D4 composite helmet down to 1050 grammes without compromising on strength. The Mips C2 protection system provides an additional layer of safety in the event of a fall. For comfort, the D4 Composite features an airflow system that channels cooling air through a front air intake, through the polymer centre and the power grid side mesh to keep the head cooler while riding. X-static and XT2 anti-bacterial/anti-odour padding ensures that the inside of the helmet remains a much more comfortable place.