An orthesis (1) has a trunk section (2) and at least one extremities section (3), whereby the extremities section (3) of an elastic textile material and is in the case of normal use of a body extremity of a user of the trunk section (2) up to a the trunk section (2), the trailing end portion (6) of the extremities section (3) at least in sections, and in this case exerts a compression effect. The extremities section (3) has a track extending along the extremities section (3) of the trunk section (2) up to the opposite end region (6) extending function seam (5), wherein the two along the function of seam (5) are connected to each other in the edge regions (7, 8) of the elastic textile material, which differ from one another have a bias. The extremities section (3) is made of a single material sheet of the elastic textile material and has in addition to the function of seam (5), no further seam, which extend along the extremities section (3) of the fuselage region (2) to the end region (6) of the extremities section (3) extends. A first seam length of a first edge zone (7) of the elastic textile material is shorter than a second seam length of a second edge region (8) of the elastic textile material of the extremities section (3), so that the first edge (7), with a prestress along the function of seam (5) with the second edge region (8) is connected. A of the trunk section (2) up to the end region (6) of the extremities section (3) extending center line of the extremities section (3) has a curved course.
