This works for me. It's home made, cut down from a factory screen, black on the inside and a mirror surface on the outside. The wind usually hits me right at the top of my helment...so I reckon 2 inches taller for my next one.
I like to look over, not through. Well, I will admit that when it's cold it's warmer to hunker down behind one you can see through.
Here's the inside look.