This shirt does not conform to normal human proportions. This is not your usual sleek haircut. I usually buy a 17.5 neck with skinny 37 inch sleeves because I don't have the guts to fill a regular neckline. I have normal sized arms (I'm talking muscle). The sleeves in this shirt are so tight that they restrict blood flow. I can't button the top buttons on my shirt because there isn't enough space and my chest is normal. The sleeves are long enough but there is not enough fabric to tuck the shirt into the pants. This shirt suits a person with long, very thin arms, a very thin chest and a very short torso. Basically, you probably have to look like an alien to find the right fit.