The shirt has been cleaned, but could use another cleaning as there are still some yellow to the armpits. The shirt is worn in and this shirt is the coolest shirt on the Internet. Western shirt also comes with a small cigarette hole so even if you don't smoke, it's still a worn in awesome country western shirt.
Others have tried to replicate this awesome vintage eagle look, but none have entertained such awesomeness. The size has worn off, but measured here for you and feels like it's around a 16 1/2 but listed it as a size large.