Get ready to take your outdoor adventures to the next level with the ultimate hydration solution - INTAKE ICE Reservoirs by Mazama Designs. The INTAKE ICE Lumbar reservoir is shaped to fit comfortably in the small of your back and will fit a wide range of packs. Our reservoirs are designed to make filling and loading a breeze with their wide-opening fill port, plus, with a custom mPE blended resin made right here in the USA, you can trust that you're getting the highest quality materials. But that's not all, our high-flow drink tube and GYZR bite valve ensure that you'll get fast and efficient fluid delivery whenever you need it most. And, thanks to our patent pending INSOTEK technology, our insulated reservoirs keep your water colder for 40% longer than non-insulated bladders!