Costa Del Mar Brine Black Sunglasses 400G Blue Glass Mirror With Free Black Mesh Hat Plastic frame glass lens polarized Lens width: 59mm Comes with FREE Costa Black Mesh Hat 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