I would not normally have rented a size 4 (40), but the stylist assured me this was the right size for me and the higher up sizes were out. I'm 5'7" and 136lbs. The top of the dress fit, but the bottom was so small I couldn't even put it on all the way. I don't even think I would have fit into a size 6. I love the color, so it was a shame I couldn't wear it, but I had a second dress as backup.