I bought large for my first few days after Lipo. By the 5 day I was able to put the medium.
Im 55 142 pounds. down to 135 pounds.

This shaper is cozy and breathable.
However the private area is horribly designed. /: The Cut out for the private area is literally just a slip. So the (not so elastic) slit digs into your privates. It  actually very uncomfortable. And you cant go digging in your front parts while out in public.  I wish it was a lap over system with lots more elasticity in that area so it doesnt dig into you and cause discomfort.  I sowed mine together to get rid of the discomfort. But now have to take everything off to use the ladys room /:
The other downside with this is its one size. As you shrink this $70 shaper is obsolete. You will have to buy another one and another one /: