I've had these oakleys(the tortoise shell) for about 2 months now and I really like them.  I took them to a local eyewear store and had them sent out for my rx.  The sunglass lens clarity is outstanding.  This is my scond pair of oakleys(second pair is the Scalpel) and both have oustanding clarity. At first I was concerned the oakley frame might be a bit to orange for my taste, but when they arrived the tortoise shell was a darker brown/copper(with gold oakley symbol) that I really like. Unlike the Scalpel Oakleys I have, the Monsterdogs have no rubberized grips anywhere on the glasses, I have yet to go out and "be active" with the monsterdogs but regardless of this the way they fit feels very comfortable and firm. And i don't worry about them falling off. Plus seeing the world through copper lenses is nice. All in all I am happy with my second pair of Oakleys and definitely recommend these frames no matter the color. One point against the seller of these glasses is that they did not come with a harder case, only the cloth cleaner bag.  A case would be nice for glasses like these.