Costa Saltbreak Sunglasses Imported plastic frame plastic lens Polarized polycarbonate coating Lens width: 63.5 millimeters Bridge: 21.2 millimeters Arm: 120 millimeters 3" high 3" wide 100% UV blockage for maximum protection 100% polarization kills reflected glare Polycarbonate & trivex are your lightest and most durable lens material options C-wall is a molecular bond which is Scratch-resistant