I'm a size 12/14. I purchased the 1x. The dresses seem identical when you see them - cut and length.  They all fit differently! I'm not pleased with that. One is tight in the bust (it's all elastic in the bust), another dress pulls at the arm pits,  one dress fits amazingly!  For the price and being 4 dresses is amazing,  but only one fit well for me.  I would buy more if i know they all fit the same.  1 out of 4 isn't bad, but i expected them to fit the same or at least be consistent in not fitting well at all.