My stats (to help you choose a size):5’ 8” / 210 lbs / chest 47” / waist 36 (in Levi’s) / biceps 16”.Perfect fit for me: 17.5” 34/35 (xl), feels tailored. A great option if a classic/regular size is too big, but slim fit is too tight. The fabric does have a very slight stretch to it, but not enough to matter. I wish it had a little more, but thats not a deal breaker. (Look at Van Heusen Fitted Stretch if you want more. Excellent shirts w/ same fit but very limited colors).I have a large 17 3/4” neck, so I can’t wear a tie, but the fit across chest is great. It’s fitted around the belly, but not so much where it makes you look like sausage. You’ll actually look leaner and more polished off. I’m a little wide in the shoulders, so if I reach out, it’s a little tight around the upper back. So I wouldn’t take this shirt out dancing. If I got the 18” version, it would fit at the neck, but too loose everywhere else . The 17 inch version would be way too tight.All in all, it’s a sharp looking shirt that would be great for the office or out to dinner.