Prepregnancy, I wore a size 7/8 underwear, size 8 pants, and weighed 175; I got XXL and they fit great. They will shrink a bit if you dry them, but not too much; consider ordering up a size if this will bother you. Ive had them for two months now. In the beginning, they were my most comfortable pairs of underwear; now, at 34 weeks pregnant (and 200 pounds), they're the only ones I can comfortably wear. Good with pants, leggings, dresses, etc. No muffin top and minimal panty lines. Do wash them before wearing.