Really great, tightens the waist and abdomen, barrel. Has elastic bands in this area. For my measurements 101-84-97, I took size S - and it reduced my waist by 4 cm! Does not reduce the bust, holds quite well even with such thin straps. At least for now - haven't worn it yet. But you can wear it with a bra. The fasteners are hooks, not buttons, which is also better. 3 rows of hooks. For my height of 168 cm, I fastened it at the smallest size. Take a smaller size for compression of the abdomen and waist. The legs and chest of this bodysuit do NOT reduce, only the area of the stomach and back.