Genuine Smith XCL Lens

The XCL lens is specifically designed to enhance film advancement with the Smith Roll Off System. A series of ultra-sonically welded clots are aligned veritcally and horizontally outside of the viewing area to eliminate surface friction during wet/muddy conditions. 100% protection from harmful UVA and UVB rays. Sonic replacement lenses will fit Ultra Sonic, Sonic, Snow Sonic Airflow.