Construction (Expanded Polystyrene) High impact ABS shell Features • 10 vents • Top and side vents have opening and closing button • Goggle clip • Equipped with non-removable viser • ECE approved, anti-fog, anti-scratch, anti-UV lens Standards CE EN1077 HELMET SIZE GUIDE XS 48-54CM S 54-56CM M 56-58CM L 58-60CM XL 60-62CM XXL 62-64CM