I think this is what you would expect a waist trainer to do. This is constructed well and will squish in all the fat. My observations were my boobs get pushed out the top so I found it better to put my bra on the outside of the trainer otherwise the bra slides up as well. The only complaint for me is that I wish it was maybe 2 inches longer because my fat bulges out the bottom and I'm constantly tugging the trainer down to pull in that fat.