The issue of $38 for an undershirt aside, the fabric on this t-shirt is really great. It feels almost like a tech workout shirt. In fact, I might consider wearing it to the gym, but I'm an instructor there, and it's a little too "undershirt-y". The black one perhaps would work better. The V neck is nice and deep so you can wear it under button downs.
The fit is the other issue. I'm a 38" chest so I wear small of most tops (including undershirts like Hanes), and this one isn't all that fitted or close to the body. Since I wear slim fit shirts, I'm afraid this will actually add bulk, so it might need to remain as house or loungewear. Which is really too bad because, again, the fabric is really quite good. Too bad, I really wanted to like this one!