32 Degrees: a brand I've been wearing for over 15 years

And it's inexpensive. I was going to use the word "cheap" there, but the stuff really isn't — it lasts, it's built decently, and it pretty much just does the job it's meant it.
Watch my video on WHY I wear these 32 Degrees shirts
There's not much more you can ask. And sometimes life is made simple when you just buy a 3-pack of shirts and call it a day.
You don't have to get them from Costco, though, you can buy 32 Degrees stuff off Amazon or their own website.