What Our Gearhead(R) Experts Are Saying:"This is my favorite hydration solution for longer adventures. The insulated sleeve keeps water cool for hours, and the multiple attachment points make it easy to secure to my pack or kayak. It's simple, functional, and perfect for staying hydrated on the go."For extended adventures that demand extra hydration, the CamelBak UnBottle 3L Hydration Reservoir is an indispensable companion. Featuring the innovative Crux(TM) reservoir, this design delivers 20% more water per sip, ensuring efficient hydration on the trail, water, or anywhere in between. The insulated sleeve keeps your water cool for hours and protects the reservoir from wear and tear. With multiple attachment points, the UnBottle easily secures to backpacks, kayaks, or vehicles, making it versatile for any adventure. A convenient handle and external fill design simplify refilling without removing the sleeve, keeping your journey smooth and uninterrupted.