Material is stretchy, I'm a 32 J, 5 ft 4 inches, 175 lbs. With the size chart, was reccomended XL. Which since I wanted to be comfortable and not feeling vac sealed, made sense. Unfortunately there is not enough fabric to cover my breasts like we see the model in the picture, not anything to keep this fabric from ridding back up, in ase you lift your hand or anything. Very comfortable fabric, I probably could've gone with a large. But since being a big busty girl and that is my main issue when shopping , I think a large would've provided even less fabric. I think if you somehow pin the fold to the sleeve you may get the best outcome.

perfect for an airport outfit. however the part that makes it off the shoulder keeps rising up. you might have to sew it down or use safety pins.