I bought these to go under a special occasion dress.  I normally stick to black, but I needed a color that couldn't possibly show through, a fabric that was smooth, and a granny cut that wouldn't show any lines.  I definitely didn't want your typical constrictive shapewear, but I was hoping for something with a little light control, and these panties fit the bill.  They feel a bit tight, even though they clearly aren't, simply because of the tummy control.  Overall a great buy for someone who wants a little shape control without the torture of typical shapewear.