SUNVP Lightweight Adult Bike Helmet with Soft Removable Chin Pad for BMX Road MTB Bicycle Cycling Skateboard Scooter Safety Protection - MATERIAL: High grade Expandable Polystyrene (EPS) and Polycarbonate (PC); Certified by CE EN1078 The vast majority of other bicycle helmets on the market are made from EPS. High quality and durable Cycle helmet manufactured with safety in mind. - WEIGHT: 0.57 lbs. We make it cooler and wilder. All outer vents and internal air channels have been greatly enlarged, pushing the cooling effect to new levels never achieved before in this industry - SIZE: L(22.83" - 24.02"). With an adjustable screw to help with a precise fit. Fits most men, women,boys and girls. - The helmet is also equipped with removable visor to keep the sun off your face and out of your eyes. - Additional Information: The high density EPS foam makes you feel more comfortable by generating cushioning effect. There are 27 air vents which allows enhanced air flow making riding cooler. The Snap-on visor for protection is removable making the helmet suitable for road and mountain bike