A fluid container includes a housing unit including a free-fluid chamber, a regulated chamber, and a plurality of valves. The free-fluid chamber is configured to store fluid. The regulated chamber includes an air bag assembly, an outlet, and a plurality of states. The air bag assembly is configured to regulate respective fluid therein and includes at least one air bag including an internal chamber having a volume capacity. The outlet is configured to transport the respective fluid from the regulated chamber. At least one of the plurality of valves is configured to selectively stop fluid communication between the regulated chamber and the free-fluid chamber based on the respective state of the regulated chamber.