I tried on the xs in the store (115 lbs, 30dd chest, short). fit: i think it is a little big, i would tend to go for a xxs petite in this for me, the length was ok, but would look more flattering in petite. also, the waist was on the looser side. the green color is amazing though, very flattering and springy/summery. the flow of the dress is also very nice. the weird thing is the belt at the waist, it starts a little off from the seam, and doesn't go all the way around, not sure if i love it or