Camelbak has been named the official hydration partner of Ultra-Trail du Mont Blanc (UTMB), the high-altitude mountain race series. The event, which includes a program of multiple trail-running races, will take place in Chamonix, France, from Aug. 25 to Sept. 1, as part of the Ultra-Trail World Tour. CamelBak will offer for sale custom UTMB bottles at its booth in the first corridor of the expo area, as well as at local retailers in Chamonix and online at