This extra-large reservoir is equipped with a backerplate to create a low/wide profile, maximizing the pack’s fit and making it easy to position a 100% full reservoir into your pack. A magnetic, one-hand bite valve keeps water close by.Redesigned from tip to tail, the 3-liter Hydraulics reservoir features innovative and ergonomic improvements that make it easier to carry, fill, load up and use-whether you're buzzing around town, travelling or hitting the trails. This version features a lightweight yet sturdy backer plate that helps reduce bending or buckling while loading, making it ideal for internal or external pack hydration sleeves.Features:Compact bite valve provides excellent water flowThumb-operated on/off lever is easier than ever to operate with one handCompact Slide-Seal™ opening aids one-handed filling, removes bulkiness, slides into packs easier and seals securelySeamlessly integrates with new HydraClip reservoir hanger in packs for secure carryExceptionally secure hose magnet systemCenter baffle and backer plate flattens the profile while carrying stiffness through to the front panel, reducing bending and buckling while loading.