Innovative hydration reservoir that maintains its shape, ideal for large volume packs and long duration activities. Hydrostatic Backerplate provides structure to reservoir allowing it to easily be shoved into a loaded pack and provides a flat profile Easy slide top opening seals watertight and provides wide access for filling and cleaning Pour Shield extends the collar to ease filling in shallow sinks Carry handle Magnetic bit valve Hydrapak blaster bit valve offers fast, smooth water flow with 1/4 twist on/off Quick connect system allows for easy removal of reservoir Ergonomic handle allows for true on-handed filling, making it easier to carry and pour as well Compact bite valve provides excellent water flow Thumb-operated on/off lever is easier than ever to operate with one hand Compact Slide-Seal opening aids one-handed filling, removes bulkiness, slides into packs easier and seals securely Seamlessly integrates with new HydraClip reservoir hanger in packs for secure carry Exceptionally secure hose magnet system Dual baffles flatten the profile and improve control when filling, pouring and carrying the reservoir Specifications Volume50