The Best Quality Of Vision In All Weathers, For Eyeglass Wearers With A Thin FacFeatures:- Evolight Nxt® Photochromic Cat. 3 To Cat. 1 Lens- Spherical And Panoramic Dual-Lens- Anti-Fog And Anti-Scratch Coating- Double Density Foam- Otg Foam CutSpecifications:- Lens: Spherical