I am 5'7, 115 lbs, and tried on a 0. the dress (red) looked great and i loved how it had a slimming effect, and i could wear this to work and the length is appropriate. it fit great, but it was a pain to get out of for some reason. i tried to get out of it through the bottom, but it kept getting stuck on my hips. i eventually got it out through the head, but it was such a pain that i just got frustrated. the fabric is okay- i expected a slightly better quality fabric for the price.