6'2 255 pounds. I wear an xl gap shirt but it's a bit tight. Old navy xl is big but loose and flimsy.
I washed this and dryer dried it. No shrinkage. The length and width stayed the same. It is very very "tall, if you're looking for a shirt to tuck and won't come out this is it. The tail covers my butt easily. If you're 6'5 or above this is your shirt.
My chest is 49 inches and I have almost a perfect amount of cylindrical space within the shirt. Shoulders fit well as well.