When Stephen Keck undertakes his next challenge, he will be kitted out in gear from Devold of Norway, the Scandinavian outdoor clothing firm. The extreme mountaineer from Tyrol is tackling the 8,163-meter-high summit of the Manaslu mountain in Nepal as part of a film documentary with another renowned climber, Hans Kammerlander. Kammerlander, aged 60, is returning to the world's eighth-highest peak 26 years after losing two of his best friends on the mountain. In 1991, Karl Grossrubatscher died in the snow and Friedl Mutschlechner was struck by lightning. Devold, founded in Norway in 1853, was a pioneer in the use of merino wool in extreme climate conditions. In 1911, it kitted out Roald Amundsen on his first expedition to the South Pole.