I bought some great Van Heusen pilot shirts directly from the factory many years ago. I loved them. Great quality and really stood up to the local coin-op laundramat. Price was right. I still had them a year ago and gave them away when we moved; now I wish I had them back.
I had bought the Stop Over Store's house brand shirts before and loved them. Apparently, they don't carry them any more. I just received six Wings brand shirts from the Pilot House, and they are just as good if not better (better fabric). I can't stand shirts with less than 55% cotton content any more, and these - which have 60% - are great.
The Pilot House has an excellent web site which describes their shirts, sizing, fabric and fit in great detail. Give em a try.