My favorite practical sunglasses, I call them that because they are not entirely fashionable, our Maui Jims. I have has a pair for the past seven years and I wear them whenever I drive. My husband just go a pair in December, after I talked him into it, and he loves them as well.
They have anything and everything at great prices...My favorites right now are Prada...but I also have a few Kate Spades that Im in love with...anyway...that website ROCKS! Check it out! (if they have what you are looking for..the prices are unbeatable.)