That type of shirt looks fine at the games, especially if you wear a vest with it. Just adds a little flare.

I don't wear one anymore since mine went missing. Ha. I do have a black, cotton shirt that is similar with a banded collar that I wear once in a while for hiking, kicking around, etc.

But mostly, I wear either a polo shirt or simple oxford for casual wear. Or, a khaki uniform type since it's the most functional. Only problem is that the khaki looks a bit like a real uniform, and people often think I'm missing from the band.