to have a greater degree of air permeability and to have openings or to be provided with nozzles the fan 9 is connected to the side cavities 1 through an air channel 10 that leads from the bottom part 11 into the framework 8 divides up at the bottom of the framework 8 and has two air outlets 17 which each project through the two side parts of the framework 8 the side cavities 1 each have air inlets at the bottom which are connected to the air outlets 17 of the air channel 10 and air outlets at the top which are connected to the air inlets 15 of the air supply device 12 during operation it is thus only the side cavities 1 that are inflated directly with heated air by the fan 9 the air flowing from the side cavities 1 on one hand through the air permeable enclosure 2 into the inflatable body 18 and on the other hand through the top openings into the air supply device 12 from the inflatable body 18 the heated air flows through the air permeable enclosure 4 to the shirt to dry the shirt the air directed into the air supply device 12 is discharged again through the air outlets 16 the quantity of air that flows through the air supply device 12 being influenced by the flow resistance of the air outlets 16 and or other restricting devices within the air supply devices 12 the air flows from the fan 9 virtually without resistance into the side cavities 1 and from there on one hand counter to.