The interior is fully removable and washable that is hygienic treated with a new Micro Metric safety buckle that allows for easy adjustment as well as release. It is constructed using HIR-TH (High Resistance ThermoPlastic Resin) for the shell, and in the inner shell is Multi Density E.P.S. It has an integrated ventilation system, large vents and wide channels throughout the shell for maximum airflow and improved aerodynamic penetration that gives it low drag and low lift. The helmet also went through wind tunnel testing for great aeroacoustics. The chin bar is locking and has an easy-lift one handed operation feature. The chin curtain and nose protection is removable.