Abstract: An inflatable helmet including a plurality of elongate inflatable members, each elongate inflatable member having at least one chamber wall defining an inflatable chamber; wherein at least two adjacent elongate inflatable members are in fluid communication with each other; and wherein the plurality of elongate inflatable members are inflatable so as to adjust the inflatable helmet from a collapsed state to an inflated state in which at least one pair of adjacent elongate members abut one another along at least a portion of their respective chamber walls.