Brown Lenses US Air Force Style Sunglasses With Case- Metal Frame. Polycarbonate Lens. UV400. Hardcoat Coating. A Class UV Acrylic Lens. Import. Case Included. Mil Spec Printed On Case. Get In Fashion With These High Quality Aviator Sunglasses. US Air Force Style, Not Authentic. Extremely Stylish, Protective, Stylish & Comfortable. Sun Protection For Your Eyes. Endlessly Modified & Updated The Classic Aviator Style Will Never Fall Out Of Favor. Polarization Helps Lessen Eye Fatigue Due To Prolonged Exposure To The Sun's Rays Making Them A Great Choice For Driving. Import. Unisex. Lens Dimensions Approx: 2.5" Wide x 2" Long (60mm). California Proposition 65 WARNING: This product contains a chemical known to the State of California to cause cancer, birth defects and other reproductive harm.