VAS-V Dual Pane (Anti-Fog) Racing Shield (with tear off posts), Clear. Inner Anti-Fog lens provides a porous and treated surface to reduce fogging, mounted with a perimeter gasket to create an air gap between itself and the shield, which increases the anti fog effectiveness in extreme fogging conditions. Inner lens surface must be treated with care, flushing clean only with running water and air dried. The surface should never be wiped with any type of cloth or surface scuffing could occur and/or the Anti- Fog effectiveness may be diminished. All Anti-Fog shields should be stored in a cool dry place when not in use to prolong effectiveness.