Kids ski helmet special features goggle compatible ventilation with ear pads earpads removable construction in mold closure system monomatic buckle colour green type of helmet half shell helmet security standards astm f 2040 en 1077 en 1077 b inner linings hypoallergenic removable washable outer shell polycarbonate inner shell eps series uvex airwing size adjustments infinetly adjustable rotary adjustment system weight 300 g