Staying hydrated while out on the trail is a top priority, and carrying around a few water bottles is less than ideal. With the Mule Evo 12L backpack, you get the best of both worlds, combining a quick and massive hydration system with plenty of storage for your extra gear. Protected with weatherproof fabric, you won't worry about your gear getting wet as you ride into a storm. Also complete with body mapping technology in the back panel, you are sure not to overheat during the hottest days.