Watching the final round of the Alfred Dunhill now and just noticed Mikko Ilonen's hat/beanie, it's looks amazingly cool. Anyone know where I could source one, or is it, le'mme guess, tour issue? Pics..

I would ask your local golf that carries Titelist. I have seen "Titleist" beanies in the shop before, but have not paid much attention as I pirchased mostly Mizuno stuff.

Good luck.