Mark McMorris signature model The Oakley Line Miner goggle is designed to get the ultimate peripheral vision with a cylindrical design. The goggle sits closer to the face, allowing incredible downward and side-to-side peripheral vision. With its large size, the Line Miner is optimised for a wide range of faces and fits perfectly with most helmets. Prizm Black Iridium Lens Prizm Lens was developed so that you don't have to change the lenses in every weather condition. The Prizm adapts to existing conditions and ensures optimal colour representation, maximising depth perception and greatly improving visibility. In addition, the high-quality lens coating made of highly heated metal oxides reduces glare.