I think this is about right
I don't think you should go any narrower than this, but you could probably go 1/4" to 3/8" wider. Â And, I'm curious as to whether posters here would ever wear a true dress shirt this tight (i.e. a shirt that goes with a tie). Â A shirt this "streamlined" certainly looks good on the model in a picture, but I'm not sure how it would play in real life. Â I ordered my Jantzen shirts at least 2 - 3" roomier than this pic.
Hmmm. I wouldn't wear a formal dress shirt that tight. The key to this shirt, I believe, is that it has narrow, high arm holes, which gives it that streamlined look. To have the body be that form fitting, you have to be pretty thin. Otherwise, a roomier cut is more appropriate. But again, for a more formal business shirt, I'd opt for something roomier.