The altitude-optimized, pressurized suit consists of a sheath of a sparingly expansible textile material. This sheath has fastened in it, and on it, by sewing, adhesive bonding or welding, compartments which are formed by virtue of the sheath being doubled, in that a strip of textile material is applied to the inside, or in the second case to the outside, of the sheath, and therefore it is connected to the sheath if only along its periphery. These compartments likewise consist of textile materials, in the first case of the same material as the sheath, and in the second case of an expansible knitted fabric. Flexible tubes-which expand under pressure are introduced into these compartments. The first-mentioned compartments act as “spacers” for tightening the suit over the topography of the wearer's body. The second-mentioned compartments act as “muscles” and press locally onto the wearer's body.