Features:Polycarbonate Lenses: Optics from Madison meets the highest standard for eyewear; ISO 12312. The interchangeable polycarbonate lenses are both impact and scratch-resistant. The lenses offer both supreme optical clarity and UV-A and UV-B protection3 Lens Pack: Our 3 Lens Pack contains a lens for bright conditions, a lens for medium-light conditions and a clear lens for low-light conditions. Along with a hard case for safe transportation and a soft case for lens protection on the moveLens Tech: Main Lens Light Filtration Cat. 3 suitable for Low-Light conditions, a Persimmon Cat. 1 with suitable for Medium-Light conditions and a Clear Cat. 0 with suitable for Low-Light conditionsMulti-Purpose: Both versatile and stylish, Madison Optics maintain their good looks on the road or trailsTR-90 Frames: TR-90 plastics are lightweight, flexible and durable. TR-90 plastic memory allows them to flex and return to their original shape without breaking or bendingSecure Fit: Our frames work se