Clear fog free safety glasses at night for me:
http://www.tasco-safety.com/sglasses/sglasses02.html#b


I had Lasik done on my eyes years ago, so I tend to want max protection and S&W and Olympic Flame gives me the style I prefer wearing in both clear and sunglass types. Lot of sand/dust is kicked up along my commute. The price is right too, so I don't feel too bad if they get scratched/lost/stolen or if I have to replace them.