*bit of a review on the bottom As someone who doesn't necessarily collect, and already feels set with using the Radarlock for cycling, this was something I really didn't need. Add the fact I wasn't too impressed by the M2 in the store before, and I would've wanted a white frame in particular - yeah; buuuuuuuut.... I got this for pretty cheap. Less than half of retail as it was a standalone pair without bag or case. Only defect was a superficial one on the lens - can't even find it on the backside. Weird that I say I'm already set on the Radarlock, but with that I'll admit I was curious to what the M2 could offer, as it's seemingly "redundant" in terms of function. I guess a new Oakley customer would feel that it's "cheaper" than the Radarlock because of the lack of cam hinges and there's less going on in general. I personally was a bit turned off at the former, but it really becomes an afterthought. A few months ago when I tried it on, I thought it had to be tighter, but actually it's secure enough, which I guess is due to the generous earsock surface. The weight (or lack thereof) of the frame itself kinda lens to staying put. I'm not sure if the pairs regularly come with an Asian Fit nose piece. As someone who uses them in the Radarlock and Jawbone, I can kinda get away with them on the M2 because the lens doesn't touch my cheeks so much - even less than a Jawbone with the Asian Fit pads on...so I've got a very close fitting lens compared to other pairs I got. I like that "sealed" feeling though it also means I have to deal with instant smudges from my brows. From when it was first revealed, I was pretty hot on the lens shape in general. I perceived it as essentially as a revised Path lens. It's taller and wider, with more specific cuts which I guess lend to the ability to clear my cheeks at the same time. I really wish the Radarlock had something like this cut. While all of my pairs are technically workhorses, this M2 is gonna be my out-of-town cycling pair. I'll cry less if I lose these - partly because of the price I got them for, of course. I still prefer the tighter grip from the Radarlock, and I don't have to clean the lenses as much since they're a bit more spaced away. Otherwise, if the M2 gets the previous M-Frame lens variety (I know they kinda fit already), I don't think there's much of an argument. Rustpot also pointed out that the M2 frame has a peculiar feature that could possibly accommodate a future Helo kit. Considering hitting up the exchange to see if anyone wants to trade a white frame (keep the rubbers - I'm cycling so you really wouldn't want mine).