Model: dual-lens with wide field of vision. Frame: polycarbonate with chrome-plated metal screw seats and stainless steel screws. Skirt: soft silicone in differentiated thicknesses, with broad textured surfaces. Areas in contact with the face created to achieve a perfect fit. Strap: liquid silicone. Lenses: Ultra Clear tempered optical glass, 3 mm thick. Optical lenses: options include negative -1.0 to -6.0 and positive +1.0 to +3.0. Package: rigid transparent box. Other features: wide field of vision. Differentiated thickness on the Comfort Silicone skirt.