Frame_material TR90(GRILAMID TROGAMID CX) Frame_color Red Lens_material PC REVO Photochromic Lenses Filter Catagory: #1~#3 Optical Level: 1 Suitable For Driving: Yes Non-Toxic Painting Inspection Standards: CNS15067 / EN1836 *AD REVO Photochromic Lenses, color change with the UV rays. *The stronger UV rays are, the darker the lenses will be. *One for day and night use and for the whole year. *Outstanding color perception *New tech frame to fit more *Vented design for lenses *Adjustable Nose Pad *Special designed arms for stylish wearing *RX adapter available