IGX

http://raceready.com/men/4200.html

Out of all the different long sleeve performance material tops I've had, this is the one that I keep going back to. Just ordered two more to go with the two I already have. Has a mock-t neck that is the right height, material feels the best of any I've worn, looks sharp with the logo on the neck, does all the performance stuff of moving sweat outward just fine. Most comfortable and best looking. Not too expensive ($27). Not a form fit like the Under Armour tops, of which I have a few.

I wear it for running, skiing, biking, going to bars, and just hanging out.

The rest of the Race Ready stuff is of equally high quality. Very responsive company, fast service. They get a thumbs up from me.