Mil-Spec Crux 100 oz-3.0L Lumbar Accessory Reservoir

Mil-Spec Crux 100 oz/3.0L Lumbar Accessory Reservoir Why upgrade to a new CamelBak Mil Spec Crux reservoir when an old reservoir will last forever? Because we never stop innovating. Our Crux reservoir delivers 25 percent more water with every sip in a pack loaded with the latest in hydration technology.