Osprey Moki 3 Hydration PackFor little rippers pedaling up a thirst a built in 1. 5 liter reservoir on the Moki makes getting a drink on the move child's play. Panel access to the spacious main compartment reveals robust internal organization for snacks and layers and excellent ventilation keeps spirits high. Adjustable sternum strap with safety whistle and reservoir hose clip for easy water access Large zippered front pocket with internal mesh organization pockets Stretch mesh