The shirt hugs your body and if you're a little bigger and not comfortable with clothes fitted - I would definitely go up a size.  The shirts are long for those who are skinnier and they do hang low.  You can tie them up at the bottom or by the sleeves and it's fine.  The shirt is SUPER light and I didn't wash it first so I got some fuzzies all over my skin when I was sweating.  Cute shirt for cheap price and quick shipment.