Nice! I am 54, 135LBS, broad shouldered (14-15 across) normally medium and ordered a small.  I was a little worried that it would be too snug in the arms but actually it fits with plenty of room (6 across at the cuff, narrowest point of sleeves) and hangs to about my mid forearm. Covers my butt too which makes it good for leggings! Loose, thin chiffon-type cardigan, comfortable. I snapped some quick pictures. Note: looks better in person, these are for sizing questions. Its a little wrinkly from the packaging, I recommend a rinse and air dry to get the wrinkles out, maybe even a short stint in the dryer on low. :)