I was gonna buy the under armour stuff but noticed Mossy Oak has their own version that has the "microbe stuff" scent control and it was about $40 cheaper for the set than UA. I have used it all season, in the early season when it was hot I would wear the shirt all by it self (kinda made me look buff like Ray Lewis) and in the cooler months it has a warming effect. Also the one thing I like about it the arms on the shirt have a thumbhole so you can hook you thumb in it and put your other shirts on overtop and the sleeve doesnt creep up your arm.

I think its called APX gear