Awesome shirt, wore it on a 92* michigan muggy summer day, felt like I had no shirt on with the airflow but the tight mesh keeps the sun off your skin. High quality craftsmanship, no snaps or imperfections. Crisp collar that keeps its shape after a wash (take polyester shirts like this one out right when the wash is done to keep the collars looking nice) and the medium has enough length for someone my height (6'2") without having to tuck my shirt in after every shot. I'm usually one to keep polyester for the course only, it usually looks out of place to me in a work or casual setting but I have this shirt in 3 different colors and I wear them to work all the time, hot days this is my go to shirt for the course or the office/shop