Camelbak palos 4l hydration packif youre a mountain biker who wants to carry more water than a bottle can hold but doesnt want a backpack then look no further than the palos from camelbak keeping your cargo low means a more stable ride and with no shoulder straps the palos allows complete unrestricted upper body movement with a 15l reservoir and 25l of storage space there is plenty of room for everything youll need to keep you on the trails tools can be stored in the integrated tool