Camelbak M.U.L.E.® Frame Pack with Quick Stow™ 2L Bike ReservoirRide longer and explore further with our M. U. L. E. Frame Pack. Available in two sizes and built around a Quick Stow 2L Bike Reservoir, our M. U. L. E. Frame Pack hauls enough hydration to help you stay strong on multi day adventures, while providing plenty of extra space for all your essential gear. Quench your thirst on the go with the Big Bite valve and use it as a hydration station at camp with the Quick Stow cap featuring an integrated on off