The RIFFE 3 Atmosphere Torpedo Float was designed to maintain lift up to 95 lbs at a depth of 66 ft (2 atmospheres). This is done by pressurising the float up to 25 lbs PSI. The float is constructed of the strongest light weight material available and will fold up to (14” x 14” x 2” = 4 lbs) for easy transporting. The outside material is constructed of 22 oz. heavy duty vinyl coated nylon with a 320 lbs/sq. tear strength.The 3 Atmosphere Torpedo Float comes standard with a side zipper for access to the inner replaceable urethane bladder. The zipper is reinforced with (5) five 1 ½” buckled nylon straps. The bladder has a reinforced 1000 lb. Denier Cordova sleeve with nylon belted straps.