Ladies ski helmet mens ski helmet application allround special features goggle compatible ventilation with ear pads adjustable size with y clip earpads removable audio compatible construction hardshell ventilation technology smith airevac 2 ventilation adjustable fit system smith optics self adjusting lifestyle colour green type of helmet half shell helmet number of air vents 12 chinstraps adjustable padded security standards astm f 2040 en 1077 b en 1