A VERY Large large
This top was huge! I'm 5'9", 150lbs and it hung on me like a sack. The arms were down to my knuckles and it hung off my shoulders. The fabric was stiff and did not have any shape. I returned it. On another note, I bought a pair of the Voyage pants and they are fantastic! Great fit and length (did not buy the longs). These I give 5 stars.