Chamonix is the annual epicenter of the most iconic trail running event in the world: the Ultra Trail du Mont Blanc. BUFF® is proud to have sponsored the UTMB® for more than a decade by developing the official BUFF® UTMB® collection. Our products help the 10,000 determined ultramarathoners achieve their dream of completing one of the seven UTMB® races that take place during the week-long event – whatever the weather throws at them. The main course loops for 170+ kilometres around Mont Blanc, spanning three countries (France, Italy and Switzerland) and offering spectacular scenery. However, it challenges runners with a total elevation gain of 10,000+ metres in punishing weather conditions – conditions that BUFF® products are specifically designed to protect you from, making them an essential part of every runners toolkit.