Avid for steep slopes, Marco Siffredi (1979-2002) obeyed only one rule: do not fall. This gifted kid with hair sometimes blond peroxide, green or blue clashed in his valley: Chamonix, Mecca of mountaineering. His thing was going up to go down on a snowboard. September 8, 2002, altitude 8848 meters, rare oxygen, his head already brushing the sky and his snowboard on, Marco Siffredi, 23, rushes from the summit of Everest in the Horbein corridor and its slopes at 50 degrees. A year earlier, he had already made the first descent of the mountain on a snowboard. But there remains another corridor... more direct. It's not a challenge, just a reason for being... He was only 19 years old when he made the coveted first: the descent of the Nant Blanc side of the Aiguille Verte, the most " wrinkled" of the Alps. From then on, Marco chained a dizzying number of descents and firsts and made the frozen white expanse with steep slopes his favorite domain. In a pure style mixing extreme and jubilant intoxication, Marco out of the ordinary, imposes his "ride" between sliding and mountaineering. However, that day, at the top of the roof of the world, his trace is lost... Bertrand Delapierre, his climbing companion, opens his archives to us and delivers here the portrait of an exceptional young man, far from the cliches from snowboard's movies.
—Caroux Summit Club