Purchased from 84mm_pineapple The lens is jade iridium. Unlike other Oakley Radar sunglasses these don't have a serial number like the other normal Retina Burn sunglasses because they were made pre 2010 when Oakley first starting putting serial numbers on their products, which separates them from the standard versions. I bought this pair from an ex Oakley employee from the US that worked in research and development and then worked at an Oakley vault store and I bought out his personal collection. It also has the jade iridium as it was also a limited trial run of the then new jade iridium lens that was to be first released on the next year Tour De France antifreeze Oakley Radar Path edition. These lens do not have an Oakley logo on the front as on other lenses as these at the time were a trial or athlete sample for the then new Jade iridium lens. All in all this pair is a highly customised edition bridging two trial limited edition TDF pairs all wrapped in one. Also included is a genuine Oakley microfibre cleaning cloth and spare nose piece.