Double up on hydration with an insulated Crux reservoir sleeve that adds 3 liters of extra water to any pack. In addition to keeping your water supply cool, the insulated sleeve features attachment points that make it easy to secure the UnBottle to a kayak, a larger pack, or any other gear setup.

• The brand new Crux delivers 20% more water per sip, with an ergonomic handle for easier refilling, and an on/off lever that makes it easy to prevent leaks.
• External fill means you can top off the reservoir without removing it from the fabric sleeve.
• Multiple attachment points make it easy to lash the UnBottle to boats, vehicles or backpacks
• Easy-to-grab handle makes carrying convenient while providing a loop on which to hang the reservoir
• Zippered tube access