Camelbak will be the official hydration sponsor of the Ultra-Trail du Mont-Blanc (UTMB), running from Aug. 22 to 28 and will provide free, freshly filtered water to the 50,000 attendees expected for the event. Camelbak water stations will be located throughout the UTMB Village in Chamonix, where the brand will sell a limited-edition Quick Stow Flaks with UTMB Logos.