Designed for tactical use, a Mil Spec compliant 3 l drinking container. A low-profile model that is easy to fill, clean and dry, with one sip you can drink 20% more than previous models. An ergonomic drinking solution that provides controlled hydration for 2-3+ hours. Designed to fit in a backpack and provide effective hands-free hydration. Quick-release QuickLink hose, thanks to which it is quick to remove the tank from the backpack and put it back into working order. The connector has an automatic drip lock, so the tank can be moved with the hose disconnected even when it is full. Easy-to-use ON-OFF valve with non-drip mouthpiece. The large, very easily closed and opened large filling hole enables filling even without taking the container out of the backpack. Cleaning is quick through the opening. Inside, vibration-absorbing in between. Made of materials that do not cause tastes or odors in the drink. HydroGuard antimicrobial surface thicker than consumer models. Materials: Polyureth