I bought these lenses after weeks of trying on shades. They are very comfortable and hold on to my head really good without them feeling tight or moving around. You can even look down without them falling off. I have some pros and cons for you to consider, I've used them for about a year now so I can let you know what I really think of them.
_________________________________
Pros:
Great look (I have a thin face and usually large lenses don't look good on my but these do)
They are very comfortable (hold on tight enough to not fall off but you actually forget you are wearing them after a while)
Solid construction, metal frame is lighter than it looks and feels really good in the hand (not cheap at all)
Polarization is really good, really helps when driving, boating, etc.
No squeaking or rattle even after using them daily for about a year.

_________________________________
Cons:
I live in a tropical country, what I like to call beach weather year round and we have a lot of sun and few clouds. The cool gray color of the lens is too light for climates like mine. Even with the shades on sometimes I feel like i'm walking around with my eyes shut. I would highly recommend oakley to make some darker lenses.

The rubber in the legs is kind of silicone and they stretch as usually silicone does. It starts expanding up to a point it goes over its groove and looks odd. Although even stretched does not move or come off, therefore I won't replace them any time soon (I hope)

_________________________________

At the end I really like these sunglasses, pros are higher than cons and probably in the future I would buy another pair if needed.
For the present time, I have a few scratches right in the middle of my focal point so I will probably look for darker replacement lenses, G-15's probably since they combine well balanced colors and protection.