Where to buy very slim fitting polo shirts?

At work we can wear pretty much anything with a collar, so in the past, I've usually opted for American Eagle's vintage fit polo shirts for multiple reasons: 1) No other polo shirts I've ever found were as long as as slim. I am tall and skinny, so this is important. 2) I can almost always find American Eagle polos for less than $15 either on clearance or at a store like Marshall's.

The problem is that American Eagle recently decided to stop making vintage fit polos. All of their polos are now athletic fit, and I don't like the fit at all, as it's too wide.

So...where does a tall, skinny guy find a slim fitting polo shirt? :|

Thanks. :)