Frame: Light
Lens: Tungsten Iridium Polarized

Very lightweight and comfortable. Quite similar to the Titanium Square Whisker but with slightly smaller lenses. The titanium frame is very flexible and has yet to fall off my face. The Tungsten Iridium lens is excellent, though I'm not a huge fan of the yellow tint. Nonetheless, these look very sharp without being over-the-top like some of Oakley's other models. Recommended for casual use. The included hard case is another plus.

Frame: Burnt Copper
Lens: VR28 Black Iridium

Now I've owned a pair of Nanowire 2.0's, and while the reviews seem to be better for those, I think these definitely top them. I've got a medium sized head, and even though they are for the larger melons, they fit me perfectly and look great. The burnt copper is great with the VR28, and the fit is snug and comfortable at the same time. The one major issue I had with the 2.0's were the snug ear stems, but these won't fall off if you are running or doing anything really. VR28 Black are still my favorite lenses, and I still can't go back to Grey Based. I would compare these to the Splinters, which I also recently bought. I didn't know how similar the two were, but the lenses on the Nanowire's are much bigger and cover more area.

The price is still rather high for these, but if you're lucky to grab a pair at a good price, I would highly suggest snatching one. You will not regret it.

Frame: Burnt Copper
Lens: VR28 Black Iridium Polarized

I can't find one thing bad to say about these. They're super light, fit really well to my face, and the lens provides PLENTY of coverage without obstructing any peripheral view. The VR28 Black Iridium is one of, if not my favorite lens because of this pair of shades.
I know the nano-wire series are supposed to have flexible metal frames, but I'm still too afraid to test them out. When I end up sitting on them, god forbid, I'll post back on their condition.
I've gotten a few compliments in public on these as well. People love that Burnt Copper frame.

Frame: Matte Black
Lens: Black Iridium Polarized

Oakley continues to focus on releases that are arguably fashion-oriented, and the Nanowire 4.0 seems to fit that category. With a conservative, squarish frame and relatively simple design, these shades perform well in their category. They're extremely lightweight and the earstems are incredibly flexible, which removes the need for a spring hinge. Lens coverage is also very adequate as they would probably be best suited for larger or possibly medium-sized faces.

Frame: Burnt Copper
Lens: VR28 Black Iridium Polarized

I bought these a week before I left for vacation on Maui last summer. I actually packed 3 other pairs of Oakleys but the others ended up staying in my suitcase. I wore these the first day and never looked back.

Visually, these are probably the most conservative of the Nanowire family other than the split ear stems. But it was actually the ear stems that sold me on them. Put together, these are the lightest sunglasses I own. You really owe it to yourself to check them out in person if you don't believe how light they are. As mentioned in other Nanowire reviews, the nose bridge is not flexible, which maintains proper alignment of the lenses and keeps Oakleys famed HDO reputation in tact.

The ear stems, however, are very flexible and have just enough elasticity to hug the back of your head without pinching. I literally wore these 6-8 hours a day, every day for 2 1/2 weeks. In the blistering summer sun of Maui, the Unobtanium also lives up to its reputation. I never once felt like they were gonna come off, even on boats and a parasailing ride.

It's ironic, Oakley is obviously gunning for that MJ brand of sunglasses with this line. Yet it was on the island of Maui that I fell in love with my Nanos.