The shirt is exactly what I anticipated. It will work well as a layer when necessary, but also as a shirt worn itself. That was my initial goal. The wording on the back below the neckline is really modest and not a deterrent to my wearing it by itself during chilly periods.
I am a very small guy, 120lbs and 5'7''. I ordered a small and it was so tight in the chest that when I raised my arms the shirt pulled up and wouldn't go back down when I lowered them. I also expect it to shrink some, so there is no way I can wear this. I highly recommend Carhartt adds gusseting to their clothes, because an underarm gusset would have solved this.
Otherwise, it seems well-made, soft and I suppose it would be quite durable. The sizing is just weird.