Alpina Altona Commuter Helmet Black

Thanks to a number of new technologies, the ALTONA sets new standards when it comes to safety, ventilation, comfort and integration. The high-performance material Koroyd ensures maximum protection. The stable and extremely lightweight honeycomb structure consists of a multitude of small tubes that are thermally connected to each other. In the event of an impact, they flatten and absorb energy. Due to the stable design, Koroyd also allows for much larger openings in the helmet surface, which guarantee excellent ventilation. Ventilation ducts guide the air inside the helmet along your head. With the ALTONA, the ventilation management can also be actively regulated by a sliding upper shell. Whether in the cool morning or in hot rush hour traffic, the ventilation is always optimal. However, the ALTONA is much more than just a helmet.
 
Key Features:
Ceramic Shell
Durable outer shell thanks to the 3 shell construction
Ergomatic
Easy-to-operate belt buckle with twist-proof, multi-stage automatic lock
Hi-EPS
Optimum impact absorption thanks to Hi-EPS material made from microscopic little air chambers
Inmold
Low weight thanks to the inmold production where the upper shell is thermally connected with the Hi-EPS
Y-Clip
Adjustable straps by ears
Edge Protect
The lower edge of the helmet is protected by the polycarbonate shell Edge Protect
Airflow Venting
Strategically arranged ventilation openings guarantee ideal air flow in the interior
Run System Ergo Flex
The smooth-operating and soft to the touch Run System Ergo Flex guarantees the greatest possible level of comfort
Koroyd
Koroyd technology ensures outstanding ventilation with maximum protection