There site (Rudys) was not too user friendly. clicked on more info and it puts the item in shopping cart. Tried entering your discount code and it doubled the quantity.
Get yourself some Rudy's. (www.e-rudy.com) use discount code 2alpha for 30% off.
I am sponsored by them, but I bought three pair before I was sponsored. They have a lifetime warranty and will replace your lenses for free if they get scratched. You have to pay shipping. I tried a buddies once and while I was cleaning the lens I accidentally dropped the lens on the gravel. My heart stopped and I looked over and he was staring at me. He laughed and said, "Don't worry, they aren't scratched" Sure enough, they were still perfect.
One thing to keep in mind when comparing and good pair of glasses with a cheap pair is that the good ones offer UV protection. The cheap ones don't. They only tine the lenses so you don't have to squint. That squinting would normally block the UV but since you aren't squinting (because of the cheap glasses) your eyes are getting the full dose. Get the good ones and keep up with them.