I'm 6'4" and about 200 lbs and finding a shirt that is long enough, but not too big through the body is often a challenge.  This shirt is exactly the right size, long enough to tuck in my pants comfortably, yet not so big that I don't swim in it.

Material is good too.  Nice and lightweight - very comfortable.  I have not worn it in hot/humid temperatures yet but the material does not feel like it would cling to the torso in such situations.  Overall, a very good Polo shirt.