I saw this selling on Zappos for $320.00 retail I am not paying that for a pair of sunglasses so of course I looked on Amazon & found used for half that price.  Really quick shipping from Amazon as soon as I saw the cheap plastic Prada case I had a bad feeling.  The modern egg shaped plastic case itself is cheap & probably made in china...  the interior lining popped out when opened.  The glasses itself is 139mm wide and will fit small to normal size heads.  The metal frames are normal quality kinda light, nothing special, the arms are hard plastic, the red Prada logo on arms sticks out & is pretty cool.  Now the most important part the lens.  The lens is not high quality glass it is plastic or whatever fancy word they call plastic lens, I was not impressed with it at all
, not even polarized.  These are supposedly made in Italy but I would put the quality one notch above made in china. These glasses feel light & plasticky, I have had metal frame Versaces in the past & those were 10 times the quality.  I bought Arnette Bacon polarized for $129.99 which are made in Italy also with glass lens & superior quality.  Appears to me Prada is just selling there overinflated name, I would pay $99.99 tops for these,  your a sucker if you pay retail for this.  I am returning these & getting a Versace or Polo