Frame: all
Lens: all

The Necessity is essentially the replacement for the Ravishing. Subtle sweeps in the frame give it a slightly more streamlined look, but for most it will look virtually identical to the Ravishing. The bonus with the Necessity is the addition of Unobtanium solely on the nosepads! This will keep them in place better on the face, but avoiding the rubber bits on the earstems will make it much more friendly to longer hair than a sport frame (particularly when placed on top of the head!).