Hydrapak HydraSleeve - Insulated Sleeve with Shape-Shift Low-Profile Water Bladder/Reservoir for Hydration Backpacks 3-Liter (100 oz.) High Flow Bite Valve Safe &amp Reliable

- FITS VESTS & PACKS: A perfect fit for most standard hydration vests and packs. Universal hanger is compatible with clips, hooks & loops in a wide range of packs. - GRAB TAB: Light and ?exible grab tab makes it easy to pull in and out of packs. - WIDE FILL OPENING: Slide-Seal top opens extra wide, making it easier to ?ll and add ice. - HIGH FLOW VALVE: Lightweight, self-sealing Comet bite valve can be opened & locked with one hand. - 100% BPA FREE & EASY TO CLEAN: Reverse the reservoir for deep cleaning and complete drying.