ammanati - the neck in the striped shirt looks a tad big to my eye... I can see a bit of space between the shirt collar and your neck. But I generally like my collars to fit pretty snug, especially on a shirt that I button all the way up and wear with a tie. Personal preference, you may like your collars a bit looser.
It's the same size as my 2 previous white shirts. I haven't measured it yet but I'm pretty sure it's exactly the same. There's navy stripe on my right hand side of the collar there, maybe it's just an ilusion. In my opinion you should be able to put a finger inside your collar while it's buttoned up to the top. THe other thing is that I sit all day in the office and find it more comfortable when the collar isn't very thight. Thanks for the comment