I just can't bring myself to spending $$$ for glasses for the outdoors. I break or lose them every time. I don't think I have had a set of sun glasses for more then 5-6 months ever. I used to spend the money but them days is over. Now to be clear I am talking for biking, fishing and hiking etc. Outdoors.
I do swap them out for a better set. Once I get to my truck.