The Ermenegildo Zegna 5140 optical frames feature a soft square shape with a keyhole bridge design for men. The frame front is constructed of Acetate and features metal temples with a signature Vicuna stripe. No detail of Zegna's designs are a result of chance or coincidence. Please note these eyeglasses are provided with Demo Lenses in order to demonstrate the final appearance of your frames. Please visit your local Optometrist or Optician to replace with optical quality lenses.