The Ermenegildo Zegna 5132 optical frames feature an oval lens shape and thin profile for men. The frame is constructed of metal and features herringbone patterning. 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.