Gamakatsu Polarized Smoke GM1796 Sunglasses, Green,

Size (including frame thickness): Width 148mm x Height 45mm Lens color: Smoke Green Lens: Visible light transmittance 22%, UV transmittance 1%, Polarization degree 90% or higher. Materials: Lens: CR polarized lens (CR-39), Frame: Nickel alloy, Temples (earpieces): Plastic (spring hinge) Product Code: [GM1796] / Series Name: [Polarized Sunglasses]...Features a uniquely designed frame that blocks sunlight and CR polarized lenses (CR-39) that ensure clear vision. These polarized sunglasses prevent wind and sunlight from entering, making them effective for maintaining concentration and reducing eye strain!