With the kind of technology that's packed into the Mooring from Revo, we are more than impressed by its eco-awareness. The serilium lenses are tough enough to withstand high-velocity impact, plus they have an anti-reflective coating along with Revo Polarcast polarization. Comfort was also on the forefront of the design, the Element Shed keeps dirt, debris, and sweat away and the Open Edge design helps eliminate fogging and enhances ventilation. Oh! We almost forgot to mention--the frame is made from 100% recycled pre-consumer polymer resin. How is that for perfect?