I'm 5"10" and 180 lbs. and wear a women's size 12. I ordered an XL which is equivalent to size 15. Since the dress is labled Bandage and form fitting I figured I needed some room. The fits perfect. The quality is as pictured. The rhinestones, not sequins, are fastened and not glued on. The dress fabric is thick , not thin and cheap. I'm looking forward to wearing my dress very soon to a lovely event we're scheduled to attend!