Osprey Hydraulics 1.5L Lumbar Reservoir with Bite Valve

The next generation of reservoir is here. Redesigned from tip to tail, the 1.5-liter Hydraulics LT 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. Designed specifically for lumbar packs for off-the-back hydration.