It fits perfectly, not a little too small or a little too big, its PERFECT. Im 54 and weigh 135 lbs and ordered a medium. Its long enough to cover my booty and its soooo comfortable. The only thing is theres a piece of black fabric thats under the more sheer part with the lace attached that Im guessing is supposed to give more coverage but it only covers about half of my butt lol the part with the lace covers it all tho, Ill just have to wear long cardigans with this 