MA-1 Oxygen Bottle Pouch- Found some more of these popular pouches! This pouch will hold either a H-2 bailout bottle, MA-1 oxgyen bottle, or the larger HEEDs (Helicopter Emergency Egress Device) bottle. Can be sewn to survival vest or parachute harness. Dual snap closure at top with draw string. About 11" long. Unissued condition.