SAFE BIKE HELMET: Adult bicycle helmet meets or exceeds current safety standards, it is composed of matte treatment hard PC shell + high-density EPS foam, matte treatment PC - resistant to wear and tear, scratch resistance, thickened EPS foam can more effectively absorb the impact of the collision, to protect the safety of the rider's head . STRONG ADJUSTABILITY: Adult bike helmets can be adjusted within a given range (56-62 cm/22-24.8 inches). The side straps are easy to adjust the size to fit the face, and the nylon material is more durable and will not break. There is a rotating adjustment dial at the end, which can be rotated to adjust the inner size of the helmet, so that the bicycle helmet fits the head circumference, and will not shake when worn on the head. The helmet will not fall off the head in the event of a collision. FASHIONABLE URBAN STYLE: Designed for urban cyclists and office workers. The bicycle helmet is ergonomically designed and fits the head better. The weight of 340g/11.9oz can better resist the impact of airflow and make the helmet stable on the head. Will not shake, wear more comfortable, suitable for urban commuting, road, cycling, electric bike cycling helmet. COMFORTABLE AND COOL: Soft, sweat-absorbing, removable, washable padding and 12 large vents to keep you cool on long rides. A bicycle helmet with integrated visor reduces rain, sun and dust from getting into your eyes and increases your visibility. Bike helmets for adults, women and men.