Intervention helmet KGAH001NIJ is a modern helmet used from intervention units world wide and comes with NIJ-Standard 0104.02. Material: Enhanced ABS shell of 5.5 ± 0.5 mm thickness Thickness of visor: 4.5 ± 0.2mm Weight: 2100 ± 50g Features Transparent polycarbonate face visor with high anti-impact, anti-scratch and anti-fog performance (visor can be customized to black color). Adjustable and comfortable suspension system (soft sponge & leather parts). Easy take off chin strap. Detachable neck protector (EVA padded material with Nylon cover). Designed with good ventilation and perspiration. Ask for size.