I purchased this going off reviews saying size up and returned my 2XL for a L - probably will even get a M soon. Using for compression to train waist while losing weight. Would be good for post surgery as well.  Ive previously used the latex ones and this is a nice change from how uncomfortable they are. Obviously no compression is really comfortable but this is as close as it gets. I like that it is full back and has removable straps. Not sure if its a product flaw or my body but both sizes pulled in more of one side of the waist vs the other. Not super noticeable but worth mentioning. My recommendation is to not go by weight when purchasing- but waist size. Mine seems to align with that.