Kids ski helmet application allround special features goggle compatible ventilation with ear pads with y clip adjustable size earpads removable construction in mold ventilation technology giro super cool adjustable fit system giro in form fit system colour black type of helmet half shell helmet number of air vents 10 chinstraps adjustable padded security standards astm f 2040 en 1077 outer shell polycarbonate inner shell eps size adjustments rotar