An electronically-activated, self-molding and re-shapeable load-bearing support structure system is provided that includes a first composite structure. The first composite structure includes a first layer of a first thermally-responsive polymer; one or more first heating elements positioned adjacent to the first layer on a first heating element side; a second layer of the first thermally-responsive polymer positioned adjacent to the first heating elements on a second heating element side; a temperature sensor communicating with at least the first layer or the second layer of the first thermally-responsive polymer; one or more electrical connectors electrically communicating with the heating elements; and an electrical controller detachably connectable to at least one of the electrical connectors of the composite for providing an electrical current to the heating elements. A method of molding the load-bearing support structure system is also provided.