If you like your shirts tight (nearly skin tight), then purchase your regular size.  However, if you prefer a normal fit, then purchase one size larger.  The size difference of this shirt compared to other polo shirts I have is considerable.

Other reviewers commented on the small size of these shirts.  I should've heeded the warning and purchased something else.  Maybe you should do the same as well.

Other than the size problem, the look and feel of the material is good, but is very thin.  I actually liked the thinness of the material, but may not last very long.

The button holes were a little stretched out and seem a little large for the buttons.  When I wore the shirt, the buttons would keep pulling through the holes.

Buyer beware...
If you like your shirts tight (nearly skin tight), then purchase your regular size. However, if you prefer a normal fit, then purchase one size larger. The size difference of this shirt compared to other polo shirts I have is considerable. Other reviewers commented on the small size of these shirts. I should've heeded the warning and purchased something else. Maybe you should do the same as well. Other than the size problem, the look and feel of the material is good, but is very thin. I actually liked the thinness of the material, but may not last very long. The button holes were a little stretched out and seem a little large for the buttons. When I wore the shirt, the buttons would keep pulling through the holes. Buyer beware...