Costa Del Mar Fathom Blk 400G Blu Mirror Glass - With Free Neoprene Blk Retainer Plastic frame glass lens polarized Lens width: 60mm Comes with FREE Costa Neoprene Black Retainer Stainless steel integral hinge Heavy-duty TR 90 nylon frame 100% UV light blockage for max protection and 100% polarization kills reflected glare and reduces eye strain Glass lenses have the greatest clarity and are scratch resistant