I wear nothing but tech shirts now, under my dress shirt, when I work out and when I go to sleep. The positive of this shirt is that there's zero static cling factor, it's the most comfortable on the inside than any other tech shirt I have, it dries quickly and it's medium-lightweight. Part of the comfort are the long sleeves that make the chest feel looser and not ride up your armpits when you reach up. I never use this shirt for working out, only under my dress shirt and it's great at temperature and humidity regulating for that. I NEVER sweat in my pits under my dress shirt anymore because of this shirt.

It last about 3 months of constant wear because it became brownish and the breathability lowered. But it still works well as a dress undershirt. I even bought another one for my dad as a gift.