Abstract: An inflatable flotation device is formed of two adjustably inflatable chambers superimposed one upon another and joined by an airtight seam substantially circumscribing the periphery of the chambers and conforming generally to the outline of a user's hand and lower forearm, and a hollow portion arranged between adjacent sides of the inflatable chambers defines a space for receiving such user's hand and lower forearm. The two chambers are in mutual fluid communication and controlling the extent of inflation of the device controls the tightness of fit about the user's hand and lower forearm. A sealed area in one of the two chambers is corresponds generally to the location of the user's palm to facilitate bending of the device in the inflated mode.