This doesn't smooth, really. It doesn't hold in or up. What it does is...sit very comfortably from waist (high) to upper thighs. These are not thigh slimmers (which would be longer). These are short boxer lengths.

They are like a thicker pantyhose top that doesn't constrict (when bought in proper size). I have a 35-36 inch waist (depending on tape measure) and I got the 2XL and it's not binding at all. I might try the next size down to see what kind of light compression I might get.

I like these for comfort, but I'm gonna try this brand's thigh slimmer. I think for dresses, I'll prefer more than this boxer length provides.

If comfort is number one for you, then yes, try these. Very stretchy and no "cutting in".