I wear a medium to a large and I ordered an XL because I wanted to use this tank as a comfy, around the house tank.  Just something casual.  In no way, shape or form is this an A-Line.  It's totally tight and fits like a normal tank top.  Seriously, the girl in the pic must be a size S, XS and is wearing an XL.  No flowy fun here.  :-(  Very disappointed.