Hydration for running, hiking and biking, wherever you may roam. We create ever-evolving hydration systems that keep up with our always-exploring adventurers. The Fusion™ 2L Reservoir with TRU® Zip Waterproof Zipper offers revolutionary design that's easy to use. We bring heavyweight features in an ultralight package equipped with a universal hanger for all hydration-compatible packs. Molded backplate creates a thin profile with no need for baffles so cleaning is that much easier. Made with safer chemicals, earning the Repurpose Green Sustainability Badge.