With the Intake Series, Bend, Oregon’s Mazama Designs has evolved the personal hydration bladder to new levels of streamlined functionality. They fill-up quick and easy with the expandable Flexfill opening and simple fold & lock closure. A spine-like handle makes for easy packing & its shape is universal to fit all your backpacks. Thirst is instantly quenched with the Intake’s large bore drink tube and new high-flow GYZR bite valve. Intake series reservoirs are available in 4 different models in 2 & 3-Liter capacity.