I’m 5’10/155lbs/36-29-39ish. I got a large and it fits great. I *may* have been able to get a medium, but I wanted to be sure the dress touched the floor, which it does in the Large and with my height. It’s not tight at all when I sit which was also a goal in getting the large, but it’s not loose either. The straps come adjustable which I thought was great. The chest part is kind of loose but I got a bra that will hopefully help with that. It’s a really pretty dress and I thought the price was great too. It doesn’t seem cheaply made really. I got some silver heels from FN to go with the dress and I put one shoe on to see if the dress still touches the floor, and it’s close, but not quite. Great find!

perfect