Diver's bag

A bag for use by divers for transporting articles under water comprising;

• an endless side wall open at either end;
• means closing both ends of the endless side wall which together with the endless side wall forms a watertight hollow receptacle having an inner cavity forming a single buoyancy chamber;
• means for manually carrying the bag attached to said receptacle;
• unidirectional valve means mounted on said receptacle for buoyancy control of the single buoyancy chamber;
• a plurality of watertight inflation means mounted on said receptacle communicating with the single buoyancy chamber;
• wherein gas can be supplied to said single buoyancy chamber by said plurality of watertight inflation means and discharged from said single buoyancy chamber by said unidirectional valve means to provide the bag with a variable buoyancy, said single buoyancy chamber forming the sole buoyancy chamber of the bag
• wherein the means closing one end of said endless sidewall comprises:
• a lid;
• and a watertight zipper extending about one end of the endless sidewall between said endless sidewall and said lid, said zipper movable between a first position in which said lid engages said endless sidewall in a watertight manner to form said single buoyancy chamber and a second position in which said lid is movable away from said sidewall.