Just wanted to say hello and rave about how awesome these glasses are to own. I've had them for years and have not lost or broken them. They could probably use a tightening and new rubber, but I'm waiting to get them Rx filled. I go see the eye doctor next week, and there is an authorized Oakley Rx dealer nearby. I hope they can fill them using the Black Iridium style lenses they came with. I want to use them more, so this something I need to do. They have a serial number of XT043889A but I don't know what that means. Cool site, and I look forward to checking out what everyone knows about Ti02's.