45-49cm | Reduced to the essentials: protection and style. The asymmetrical design, Inmold construction, and a guardian angel inside the Alpina Haarlem make every ride through the city a safe experience. With asymmetrical air inlets at the forehead, matte solid colors, and large ventilation openings on top that form a guardian angel with the padding inside, the overall appearance is complete. To ensure the Alpina Haarlem fits perfectly to the head, the Run System Ergo Flex + is integrated. A fine adjustment can be made almost continuously through a dial. The urban helmet is manufactured using the Inmold process, where the inner shell made of Hi-EPS is foamed under high pressure and strong heat to the outer shell. The result is lightweight and safe helmets for a relaxed ride through the city.