evo.com | Smith Goggle Accessories > Fresh viz for the Frontier. The Smith Frontier Lens is a direct replacement for your Smith Frontier Goggles, so a scratched or worn-out lens doesn't have to mean a whole new pair. It still blocks 100% of UVA and UVB rays, keeping your eyes protected through bluebird laps and long days on the mountain. Smith Frontier Replacement Lens Cylindrical Carbonic-X Lens 100% UVA/UVB Protection | Smith Frontier Lens 2027 in White