Costa Unisex Copra Polycarbonate Imported Composite frame plastic lens polarized Lens width: One Width millimeters Bridge: 22.1 millimeters Arm: 130 millimeters Polycarbonate & trivex 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