Costa Loreto Sunglasses Imported Metal frame Plastic lens polarized 100% UV protection coating Lens width: 53.3 millimeters Lens height: 46.6 millimeters Bridge: 21.3 millimeters Arm: 116 millimeters Polycarbonate & trivet are your lightest and most durable lens material options C-wall is a molecular bond which is Scratch-resistant 100% UV blockage for maximum protection 100% polarization kills reflected glare