Girdles At Sears I've Bought Girdles Before, But Can't Seem To Get The Right Fit. How Should I Choose The Right Body Slimmer?

I've bought girdles before, but can't seem to get the right fit. How should I choose the right body slimmer? - girdles at sears

Looking for something elegant look amazing me in a dress. I do not know if I should go a costume, full body or just parts. Something not too inconvenient to be where at least 6-8 hours.