Mazama offers a complete line of innovative, patented/patent-pending water bladder systems and replacement parts for virtually every backpack in the market. All incorporate Made-in-USA Metallocene film, for a true taste-free drink of cold water. Our Celilo “DualCap” bladders are a perfect replacement for any CamelBak backpack, and our “Windigo” bladder is the easiest, fastest bladder to open, fill, and close in the market; the full-length handle makes is very easy to insert the full bladder into a pack. (less)