I was told to size down in dresses. This was my first purchase with fashion nova. I am so happy with my purchase. I will say that if you are curvy and have a larger bust and hips you may want to size up because there was some stretch in the waist but not much in the hips. I am normally a size small or size 2-6 in dresses depending on design and fabric and I am glad I sized down because it hugs my body perfectly. If I had gone with my normal size a size small it would have been way too big in the bust. I have a very small bust area but for curvy ladies I would suggest sizing up because stretch is very minimal. Wish this dress had a zipper because it is very difficult to get in and out of it. But super stunning on! Amazing! Wish there were more colors available!