Under Armour
Very comforatable material. It feels like cotton but barely holds any moisture and keeps you cool. Only complaint is the neck is pretty tight and not as stretchy as the rest of the shirt.
Armour Men Heatgear Tech Long-sleeve Tee
Awesome shirt! My place of employment is always cold, this shirt keeps me so warm. It really keeps its shape with washing.
pricy but ok ( wolfes02 )
The shirt said warm even in cold weather will longjohns are better and this stuff is over priced I think did not work as well for me but I was on my motercycle might be better if you are just A runner way over priced I think
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Armour Men Heatgear Tech Long-sleeve Tee 
pricy but ok ( wolfes02 )