Double up on hydration with an insulated Crux(TM) 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. FEATURES 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 SPECIFICATIONS COLLECTION: Backpacking ACTIVITY: Outdoors USER: Unisex HYDRATION CAPACITY: 3L/100 fl oz HYDRATION TYPE: CRUX(TM) Reservoir with Quicklink(TM) System BPA/BPS/BPF FREE: Yes QUICK LINK DISCONNECT: Yes GEAR CAPACITY: 0L/0 cu in PACK WEIGHT: 150 g/5 oz DIMENSIONS: 46 x 23 x 7 cm / 18 x 9 x 2.7 in WAIST BELT: N/A NUMBER OF EXTERIOR POCKETS: 0