I ordered this dress in an XS as that was all that was left in stock (I'm 5'7" 135#) and it fits like a glove. the fabric is so soft and stretchy, it feels like I'm not wearing anything! it's the next best thing to being naked. the waistline detail makes for a flattering fit. I only wish I would've ordered one in black as well as red. hopefully, they'll be back in stock soon.