Fresh coffee is on the breakfast table, the morning program is on the radio. It's 8 o'clock, the city is waking up. Slowly, it's time to start for the office - with your Altona. Visor down, off into the fray. The asphalt rushes by under your bike. You flow with the traffic. Without stress, without worries, with the best possible protection on your head. Altona means "all too close". The Alpina commuter helmet brings you closer to your goals. All' your goals. Thanks to a multitude of technologies, the Altona sets standards in safety, ventilation, comfort and integration. The high-performance material Koroyd provides maximum protection. The stable and extremely light honeycomb structure consists of a multitude of small tubes that are thermally bonded together. In the event of an impact, they deform over a wide area and absorb energy. Due to the stable construction, Koroyd also allows for greatly enlarged openings in the helmet surface, which provide excellent ventilation. Ventilation channels guide the air in the interior along the head. With the Altona, climate management can also be actively regulated via a sliding upper helmet shell. Whether in the cool morning or in the hot evening traffic - the ventilation is always optimal.