I'm 5'1" and about 175-180 pounds so I'm a pretty average guy. I've been skinny my whole life but now I'm in my 40's so not looking at this makes my belly fatter. I first bought this shirt in a fitted cut. It was perfect, but since these shirts are 100% cotton, I was concerned that they would run small (especially in the stomach area) after a few washes. I returned the thin one and bought this regular (medium) one. For this review, I thought it helpful to compare the Revain Essentials shirt to…