<p>A thermally insulated double-walled disposable plastic container includes a container body having an inner cup and outer cup fixedly separated by an insulating space. The thermally insulated double-walled disposable plastic container is open at the top and enclosed at the bottom. The insulating space includes a gas for providing thermal insulation. A preferred gas is air. Preferred methods for making the insulated disposable double-walled plastic container includes blow-molding, thermo forming or injecting molding an inner cup and outer cup then fixedly connecting the inner cup and outer cup to define an insulation space there between.</p>