The optrel Weldcap offers the protection of an auto-darkening welding helmet with a lightweight, flame-retardant baseball cap. The Weldcap lens has a single, wide-angle sensor, operable in variable shades 9 to 12 or shade 3 grind mode. The nose cutout design provides a field of vision up to 270% greater than a standard 2 1/2 x 4 1/4 inch welding lens. Manufacturer two-year warranty on the auto- dark lens assembly.