Abstract: The present invention relates to a wearable assembly, such as an article of clothing or a life-jacket, for providing a rescue function, such as buoyancy, the wearable assembly comprising:—a support structure which can be arranged round the body, being wearable as for instance an article of clothing or life-jacket,—a fluid holder such as a buoyancy provider able to at least temporarily hold a fluid, preferably a gas, with a density lower than water,—a gas generator comprising a precursor for generating gas for the purpose of generating a gas substantially at a temperature which does not damage the human body or the human skin, preferably a corresponding ambient temperature.