The 10 Mila is the most popular Nordic orienteering race. It takes place in Sweden and draws 8,000 racers. The twist: the competition takes place at night...This annual event, at Roserberg Castle, 30 km north of Stockholm, is open to all participants. The passion for sport and the passion for nature come together perfectly.Since 2006, Petzl, already known as the headlamp specialist, has participated in, listened to and watched this style of race. They then decided to take up their own challenge: to design,develop and manufacture a headlamp that would allow everyone to push their limits. 10mila, headlamps, night-orienteering, night-running, ultra, Other