Smith Optics Unisex Marvine Acetate Imported Composite frame Polycarbonate lens lens polarized Lens width: 51 millimeters Lens height: 46 millimeters Bridge: 19 millimeters Arm: 140 millimeters Small-Medium fit/coverage Carbonic Polarized Lenses Cellulose propionate frame material, adjustable wire-core temples, and barrel hinges 6 base lens Curvature