Stiff fabric
I normally am a xl or size 18 in fabric tops (if they're not knit and do not stretch.) but, this looked to be a bit boxy and so i bought the 16 and it fit fine. it fit like on the model....tailored, but loose and not really a lot of fabric or boxy.

now, the fabric is stiff. and, it's sheer. but, the pockets land where your breasts are. so, i wore this with a nude bra and it's just like in the photo. there are peeks but you don't see anything. however, if this is for work, i'd put a cami under