I own one of these blouses, and oh how I love it. I am a 47 chest, and the size 46 in this blouse fits me well. It is very comforatable in hot weather, or in cold with a wool shirt underneath. The craftsmanship in this blouse is like everything Nick produces...unbelievable. The pocket comes in handy without having to dig inside with gear on. I am on the left in the photo. My son is on the right in his NJS JT Martin contract blouse.