Optical frame Porsche Design Titanium Matt Walnut - Transparent Plum (P8252 S1 E) Titanium frame plastic lens non-polarized Lens width: 57 millimeters Lens height: 38 millimeters Bridge: 15 millimeters Arm: 145 millimeters Men style Frame material: Titanium Manufacturer reference: P8252 S1E Primary frame color: Walnut in matt, secondary color: Transparent Plum