It's a nice-enough, comfy shirt with a double-layer.  I bought it because I was looking for t-shirts that would wick moisture away from my body during exercise/biking.  When I read the packaging materials on the shirt I started to have doubts--it's touted as a "insulating" and "warm" fabric, like thermal underwear.

I decided to give it a try and wore it during a hike this afternoon, wearing a small hydration pack.  It's soaked through and through after the hike--just like a 100% cotton T-shirt.

I'll keep it as a pajama top.  Since it's only $13, no big loss.  But it is not in any way, shape or form a "moisture wicking" fabric--which is how it came up on Amazon.