Strike King Women's S11 Optics Madison Polarized Sunglasses with Tortishell Frames and Dark Amber Brown Lenses Scientifically engineered lens colors to help clearly distinguish underwater structure and fish Bi-gradient mirror treatment for extra protection from light bouncing off the water Super hydrophobic coating repels oils, dust and water for easy cleaning Anti-reflective coating ensures a clearer, non-distorted image Eleven layers of superior polarized lens technology