The outer shell of the Shadowrace is made of polycarbonate, which is a material used, among other things, for high-end motorcycle helmets. It is covered with anti-scratch mat painting. The inner shell is made of polystyrene with variable density providing a better dissipation of the energy produced upon impact. The Shadowrace helmet is available in Black & Navy Three inner shell sizes are available – Small (52cm-56cm), Medium (55cm-58cm) and Large (57cm - 61cm). Each shell can accommodate 5-6 inner foams of different sizes in order to obtain a perfect adjustment to the rider’s head. With this system, it is also possible for follow the growth of a young rider. Powerful Internal Airflow Equipped with a front air inlet, the Shadowmatt provides exceptional ventilation. Fresh air flows from the front to the back around comfort foam which prevents sweating. Anti scratch matt paint Delivered with a removable and washable inside comfort liner (clip system fixation). The Shadowmatt helmet meets CE EN1384 (Europe) and ASTM/SEI F1163-15 (North and South America) standards.