Smith Optics Clayton Unisex 54mm Round Sunglasses Imported Composite frame Composite lens polarized Lens width: 54 millimeters Lens height: 45 millimeters Bridge: 19 millimeters Arm: 135 millimeters Medium Fit/Medium Coverage Evolve Frame Material, Barrel Hinges and Hydrophilic Nose Pads 6 Base Lens Curvature