Abstract: An aerobic step incorporated as an integral part of a carrying case, having its platform as an outer surface thereof, which case having thereby sufficient internal volume for carrying personal items and other belongings, thereby eliminating the need for carrying two items using the aerobic step case for both purposes. The case being formed by attaching to the step flexible fabric material of the type normally employed in tote bags and soft suitcases. The means for attachment being of several types depending upon the end use of the case, that is, by adhesives, staples, snap-on fasteners or the like. The flexible material further comprises a handle and slide fastener for opening and closing. Other embodiments comprising rigid container portions with an end open for attachment to the aerobic step by hinges or other means so constructed and arranged to substitute for a typical cosmetic case or suitcase used in traveling.