I have now purchased it in each color; that is how much I like this shirt. Between the three, it's become my default shirt for... well... everything except sleeping and the gym. They are snug, I usually wear a small but have found that medium fits me perfectly. They iron up nicely, though they don't really need it unless you like your collars stiff.

As an aside, isn't the tag in a weird spot (the red one in the front)? I kept thinking I'd spilled something on myself, and eventually used a seamripper to take the tag off.