Seems like good quality material.
I bought a large which typically fits me just right but this shirt seems to run a fuzz smaller.

Love this shirt. It is such good quality for being one of the cheaper shirts at the store! It's very comfortable and breathable. I sometimes wear it when I run and it keeps me cool. The only complaint is that the fit is a little iffy. I got a small, which I usually wear in mens shirts, and it's big on me. Other than that, great shirt for a low price!