I rented this for a fabulous date with my boyfriend. I'm 5'3" and 125 (curvier 125) and this dress fit in a 6 but with no stretch at all in the fabric and no slit in the back it wasn't comfortable to sit in so ended up wearing the 8, which fit a tiny bit big in the chest but perfectly in the behind. I wore the belt tied in the front. The beading on the shoulder is really subtle and pretty but means you need a strapless bra. Overall, my boyfriend and I both loved this dress...I was sad to send it back.