Essential gear for Charles Dubouloz and Symon Welfringer

At the Festival Montagne en Scène, we had the chance to meet several athletes, including Charles Dubouloz and Symon Welfringer. With their friend and fellow climber Clovis Paulin, they set themselves the challenge of climbing La Directissime de la Walker in winter. And we wondered how they organized their gear for this kind of ascent... Let's hear it.