CONSTRUCTION: Produced using the Monocoque-Inmold process, highest stability of shell with minimal weight. High-class skin-friendly functional padding material and easy-to-adjust 3-point safety strapping. Ventilation system included in helmet core, adjustable due to removable inlays. Detachable earpads and a Disk-Fit-System with twist closure for single-handed, continuous adjustment to head size. The outer shell is made of polycarbonate. Helmet case included in delivery.