I love the look of this coat!..the lines are great...its classy and unique.  Well made and lined nicely.  I wear a small in almost everything..ordered the medium...thought for sure I could not go wrong it being slightly larger.  With a thin r-shirt on...i true it on....tight across the back...the sleeves are not too tight...but forget about buttoning up with the well sewn hook and eye closures...so I will wear it open...just order 2 sizes up...at least!