The Osprey 3L HydraForm reservoir conforms to your back's shape even when full, resulting in a precise, stable and comfortable fit.
* Reservoir sandwiches an anatomically shaped plastic sheet between a layer of nylon fabric and the reservoir back
* Rigid spine/handle stabilizes the water load and makes it easy to slide the reservoir into the pack; large mouth makes filling and cleaning it a snap
* BPA- and PVC-free reservoir does not retain tastes or odors and features AquaGuard® antimicrobial formula which inhibits bacterial growth
* Osprey 3L HydraForm reservoir has a 180° pivoting on/off valve that rotates for quick flow control; magnetic sternum-strap buckle secures the bite valve when not in use