For some time I have been looking for a decent shirt to leave untucked for concealed carry. I have a 34" waist, tall and slim and most sports shirts are very bulky. The medium fit me, even though I most generally wear large. I tried the large but found so much extra fabric around the waist that I concluded it to be for a portly person.
The mesh in the back makes it cool to wear. The fabric and stitching is very durable and I love the snap buttons, which are hidden by real looking buttons to avoid the "cowboy" look.
Wearing it untucked, one can access a weapon either by the standard lifting from the bottom or snapping open buttons for under-arm carry.
There is little to no print so nobody suspects a weapon and the print is busy enough to distract any print. This wouldn't be possible with a solid color.
Overall, I give this a 5 star rating because it is the best shirt I have found. Unfortunately, they are out of the other two colors and blue was all I could get. Will buy the red and the black print when available.