Lift Bags are used by many divers to raise found objects off the sea floor. The Storm Lift bag is shaped to hold more air in the top, for a shorter size profile, making it ideal for tight spaces, while still providing 50 lbs of lift. Dump valve with pull cord makes control on accent a cinch and an open bottom provides an escape for air in the event of a rapid accent. Whether you are interested in recreational treasure scavenging or commercial applications this is the lift bag for all of your needs