^ Most of the shrinkage will be in length (body and sleeves) rather than width. I warm washed and hang dried mine and lost between half an inch to an inch in length, but zero in the chest. I think you'll be fine as long as you don't machine dry it (which is kinda bad for shirts anyway).
Also keep in mind all cotton fabric stretches a bit with wear; my shirts always feel a little looser at the end of the day than when fresh out of the wash.
Also keep in mind all cotton fabric stretches a bit with wear; my shirts always feel a little looser at the end of the day than when fresh out of the wash.