Come here, to find a comfortable, quality, classic-style motorcycle helmet. This open face helmet is an ideal choice for your safe. Fully vented high density EPS liner for increased strength, cooling, safety. Optically correct, multi-position drop down sunshield protects from sun, bugs rain. Weighs only 850g, eliminating neck fatigue on those long trips with your motorcycle, scooter, moped, cruiser, UTV, ATV, touring bike, or other street bike. Padded quick release strap system. Every batch of helmets are randomly tested to ensure safety standards are met. Specifications: [Product Type]: Four Seasons Helmet [Shell material]: ABS shell [Product weight]: about 850g [Product Size]: XS/S/M/L/XL/XXL Head circumference measurement method: Use a soft ruler to pass the forehead (above the brow bone) and the occipital protuberance point for a full circle, including the hair. The accuracy of the measurement is your head circumference, and then choose a helmet according to your needs. Please measure your head circumference before buying, and then make a purchase.