Ono's Walloona Hemingway Polarized Bi-Focal Sunglasses Collection TR-90 memory-flex frame Polycarbonate lens polarized Lens width: 60 millimeters POLARIZED Lens for the best in Optical Clarity 100% UVA/UVB Protection Impact Resistance -- COLTS laboratories Performance Certified ANSI Z87.1 Rated Includes Hard Case & 2-in-1 Lanyard Soft Case/Cleaning Cloth Lightweight Comfort ; Rubber non-slip nose pads and a Lightweight Comfort ; Rubber brow for shock absorption