Good quality material and I like the cut and construction, but it runs just a little small in my opinion. If you want your shirt to have a little more little more movement and little bit looser, size up. I'm 5'10", 160lbs, athletic build and bought a size M. Having said that, I like wearing the shirt (it's just more form fitting compared to what I wear normally) and it'll be a really good undershirt in colder months. I also like the shorter length.