I've been waiting to get my hands on one of these for a little while, my love of items in this vein is no secret. Thanks to @moeman I have a pair. And true to form, these things feel like they can stop a bullet. When held together with my titanium Crosshair they feel like an armored version. Thicker, heavier. But on their own the pair doesn't feel overly substantial. Someone without knowledge of Oakley wire pairs may look on these and think they look like any other run of the mill aviator. With some extended face time in the coming weeks I might be able to comment more on the weight as it feels on the face, but the strong hug from the arms helps bear the brunt and keep most of the load off the nose for me, so that's very promising. As I said above they're near brick-like in comparison with my titanium pair, but even O-Matter pairs feel heavy against Ti wires. Immediate differences Thicker frame and lens Different hinge setup Anti-fog treated lenses (apparent when trying to clean them) Less curvature to the stems, narrower natural opening The hinges are a leaf spring setup, which won't open as large naturally, but will bend to accommodate. This is to both remove the hard stop from the hinge which can cause fatigue or failure under stress, and to allow a tighter fit. As mentioned above the tighter fit may help combat the weight of the frame. These are designed similarly to the Ballistic M Frame (2.0/3.0) in that it's a tight fitting pair meant to fit inside helmets, under hearing protection, and in conjunction with optics or night vision (more so on the latter with clear lenses in M Frames). So it makes sense that it has an added anti-fog coating. One final closing note before a few pictures: Damn the APEL regs which don't permit mirrored lenses. I'll live with grey. I would have preferred dark grey if going non-mirrored, but at least it isn't warm grey.