Abstract: A girdle comprises a first portion (2) and a second portion (3), a first plurality of strips (4) that extend from the first portion (2) toward the second portion (3) and a second plurality of strips (5) that extend from the second portion (3) toward the first portion (2); the strips of each plurality gathering into at least first (6) and second (7) groups, each being joined to respective first (8) and second (9) joining members; tensioning members (12, 13) fastened to respective girdle portions (2, 3), and adapted to be removably fastened to the other portion (2) and acting upon the joining members (8, 9). Pretensioning members (15, 16) are designed to connect the first (8) and second joining members (9) to the respective tensioning members (12, 13), at least the pretensioning members (15, 16) that connect the first (8) or the second (9) joining members to the respective tensioning members (12, 13) being able to be removably fastened to the respective first (2) and second portion (3).