The Semi Goggle also comes with an extra bonus lens, and it&';s available in full range of other frame colors and tints. Don&';t forget to bring your extras with you so you can plan on riding through from high noon to after dark in the park. Anti-Fog Coating - keep your vision and riding experience on point Expansion View (EXV) technology - groundbreaking new frame design serves up unparalleled peripheral vision Injection-Molded Cylindrical Lenses - Injection-molding a cylindrical lens helps refine optics and minimize distortion Over-The-Glasses (OTG) Friendly Seamless Compatibility - For optimal performance of both helmets and goggles, Giro products are designed to work together, ensuring a seamless interface between helmet and goggle Triple-Layer Foam with microfleece facing