My husband works in Exploration, and I bought this shirt for his trips.  He said they're great and very comfortable - they fit true to size.  He works in very harsh terrain, and they have held up.  He said he liked it because he had to wear long-sleeves and it kept him from getting hot in extreme temperatures because the fabric is so light...but not so light that he would get cold in the evenings.  The color is very nice.

We tried this shirt on at a local sporting goods store and purchased it here - so much cheaper and free fast shipping!