I normally wear medium shirts, but this one was too big for the shirt to be worn by itself.  The neck was far too low and the seams hung well off my shoulders.  I sent it back and received a full refund including shipping.  I really liked the material, style, and the color, so I have ordered another one and will update this review if it fits and I like it.

For the information of other shoppers: I am 5'6" and weigh 135 lbs.