The Hydraulics water tank offers maximum stability and ease of use and is essential for staying hydrated on your outdoor adventures. The unique combination of pour protection and slide-seal top opening allows for easy filling and emptying of the tank while ensuring full access for cleaning after use. Osprey Hydraulics' unique, anatomically shaped back plate provides stability and creates a low profile to allow the tank to slide in and out of your pack with ease. The bite valve is magnetic for easy storage and access to water on the go. When not in use, the bite valve also has a simple twist lock system to switch it on and off. Made from strong but lightweight TPU material that is designed to withstand both extreme temperatures such as frozen and boiling water. The QuickConnect system allows you to remove the tank for easier charging, replacement and cleaning.