Hi all! I've owned many pairs of Oakleys in my days, just love how they seem to last! My current pair, Wiretaps, I've had now for about 11-12 years. They're my reading glasses. I've been on the hunt for some more, but they seem to be hard to find. My ones have the code 11-515 which I assume means Wiretap and colour cobalt? The nose piece says 54-20 which I assume is the sizing .