O-RING: Thermoplastic Rubber

zippered hood provides ample storage but retains a low profile to keep your load well-balanced

lightweight day hikes on rough and tumble trails

Our silver-impregnated ceramic depth filter can also be cleaned while you’re out having fun

Heavy-hauling reinforced back pockets

Osprey Hydraulics 3L Reservoir Color:Blue O-RING: Thermoplastic RubberOspreys Hydraulics 3L Reservoir by Hydrapak is ideal for large volume packs and long duration activities. The HydroStatic backerplate provides structure for easy loading into a full pack and maintains a flat profile. Thoughtful design makes filling, cleaning and most importantly staying hydrated on the trail easier than ever. All parts are BPA free, phthalate free, lead free, guaranteed. All materials are certified food safe according to FDA and EU