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. The brand new Crux delivers 20% more water per sip, with an ergonomic handle for easier refilling, and an onoff 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. Collection: Backpacking. Activity: Outdoors. User: Unisex. Hydration Capacity: 3L100 fl oz. Hydration Type: CRUX(TM) Reservoir with Quicklink(TM) System. BPABPSBPF Free: Yes. Quick Link Disconnect: Yes. Pack Weight: 150 g5 oz. Dimensions: 46 x 23 x 7 cm 18 x 9 x 2.7 in. Imported.