Native Eyewear. I wear the Silencer, and have had my current set since summer '06. They've seen some hard use, countless lens changeovers, and are still going strong.
You get several sets of lenses with each frame, all but the clears are polarized, they have WAY less distortion than anything ESS puts out, and you don't have to blow $60-100 to get new or spare lenses like you do with Oakleys.
No, I'm not busting Oakleys. I love my Flak Jackets, too, but I don't love what I have to pay for polarized bronze lenses, so I don't use them except for specific things.
Head cook and bottle-washer @ JS Defense
What do I want? Time travel.
When do I want it? Irrelevant.