Mens ski helmet application allround special features goggle compatible ventilation with ear pads adjustable size earpads audio compatible construction in mold ventilation technology anon passiv ventilation adjustable fit system boa fit system colour blue type of helmet half shell helmet fastener magnetic buckle number of air vents 3 chinstraps adjustable padded security standards astm f 2040 en 1077 b outer shell polycarbonate inner shell eps se