Frame: Red
Lens: Black Iridium Sweep

Since I'm wearing these today I feel compelled to write a review on them.

Very lightweight, durable, and aerodynamic, these shades are superb from start to finish. The once-piece frame utilizing Oakley's three-point fit ensures a secure fit, while the unobtainium earsocks and nosepiece provide superior comfort. Of course, these (M-Frames/Mumbos) were some of Oakleys first sunglasses to utilize HDO, so the optics are excellent as well.

Aesthetically, they are sleek in design and the Sweep lens compliments the contours of the frame very well. Depending on your personal preference you may wish to opt for a lens configuration that provides a bit more coverage (such as the Heater), but for most the Sweep will prove to be adequate.

Frame: Electric Blue
Lens: Grey

The Electric Blue hue is both beautiful and functional, encasing this one-piece frame in a lightweight, metal jacket. Similarly, the Pro M Frame truly epitomizes Oakley's "three-point fit" philosophy: these frames "fit like a glove" as the saying goes. Although the new Radar model - intended to replace the M Frames - may be a bit more snug, I do not forsee these glasses going anywhere in the near future. Quite simply, they are the best of the best when it comes to many sports/outdoor applications. I only wish Oakley would have released this combo with an iridium coated lense (such as black) to further reduce glare (hence the four skulls instead of five). But the fact that the lenses may be easily interchanged keeps this pair well alive.

Frame: Black
Lens: Black Iridium
Playing center field for baseball in college, I would not trust anything other than my Pro M Frames. Plenty of coverage for my eyes, even when looking into the sun to find a baseball. You can not beat the snug fit, I never had a problem with these falling off my head.

Frame: Black
Lens: VR28

After two warranty replacements because of broken hinges, I finally decided to try the Pro M Frame. Truly a pain in the ass to store, but their bulletproof construction and incredible fit are well worth the compromise.

Frame: black
Lens: +red iridium

a much firmer grip is provided byt he pro M frame, though it can be a pain to stow away cuz its not foldable, buti guess its atradeoff. it has never moved on my face, nor slipped when i'm running, cyclng, or rowing so its all good =)
a fantastic colour combination .