Osprey's 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 regulations.Features Hydrostatic Backerplate - Hydrostatic backerplate provides structure to shove a full reservoir into a fully loaded pack and maintains a flat profile. Slide-Seal - Easy Slide-Seal top opening, seals watertight and provides wide access for easy filling and cleaning Pour Shield - Pour shield extends the collar to ease filling in shallower sinks and control pouring into pots or bottles Carry Handle - Carry handle allows easy reservoir management and filling Magnetic Bite Valve - Magnet clip attaches to the reservoir hose and pairs with the included sternum strap magnet for easy water access and hose management Hydrapak Blaster - Hydrapak Blaster bite valve offers fast, smooth water flow with a ¼ twist on/off switch QuickConnect System - The QuickConnect system allows easy removal/filling of the reservoir and filtering in the backcountry Specs VOLUME: 100 IN3 / 3 L DIMENSIONS: 15H X 7W X 3D IN. WEIGHT: 0.68 LBS FABRIC: MAIN: TPU film ACCENT: TPU film BOTTOM: TPU film