I am wearing a medium  in this "High Quality Swarvoski Crystal" Bodysuit. It is very fitted.. I normally wear a small in my clothes but this one I had to go a size up in and yes this bodysuit fits like a glove!!! This bodysuit has a built in onesie bodysuit for extra support and has a built in draw string that you can adjust to fit your waist to your comfort level.. None of the crystals come off ever even if you dry clean  it it doesn't come off. it is 100% polyester you hand wash in cold water and hang it out to dry. It also has a silver zipper in the front, what I like about the front is you don't have to wear a bra if you don't want to because the material and the zipper holds them firmly in place.