What Our Gearhead(R) Experts Are Saying:"This reservoir is perfect for adding hydration to any pack or gear setup. The insulation keeps my water cold for hours, and the multiple attachment points make it easy to secure to my kayak or bike. It's simple, versatile, and gets the job done."The CamelBak UnBottle 2L bladder enhances any adventure with its versatile, insulated hydration system. Whether we're kayaking, hiking, or road-tripping, the Crux reservoir's 2-liter capacity keeps us hydrated, while its insulated sleeve ensures our water stays cool for longer. The external fill design makes topping off the reservoir quick and hassle-free, while multiple attachment points allow us to secure it to packs, boats, or gear. With an ergonomic handle for easy carrying and reliable hydration on demand, the UnBottle adapts to every journey.