The TOBE Photon Tech™ Revelation™ Goggles were built for optimal vision. Photochromic, Anti-fog, Shatter Proof, Perfect curve, Ant-scratch, UV protection, Nano Hard Coating, Anti-water, Multi-coating & Oleophobic. The traditional double lens has been developed into one high-tech molecularly bonded single lens. Anti- fog coating on the inner lens supports 4x better fog protection than a traditional double lens. Lens properties automatically adjust based on light intensity and UV light. This goggle ensures the best protection for your eyes while the lens eliminates the refraction and distortion a double pane lens has.