Ladies ski helmet mens ski helmet special features with visor with ear pads ventilation earpads removable ventilation adjustable ventilation construction hardshell adjustable fit system bolle click to fit system visor detachable colour white type of helmet half shell helmet number of air vents 12 chinstraps adjustable padded security standards astm f 2040 en 1077 inner linings removable washable outer shell abs inner shell eps size adjustment