The frameless Stealth Sunglasses from Madison offers a huge range of vision and maximum coverage. The sleek design works great for all types of riding, and really excels on the road where the huge vented shield lens comes into its own.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 options: Main Lens Light Filtration Cat. 3 suitable for Bright conditions, an Amber lens suitable for Medium-Light conditions and a Clear lens 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 seamlessly with your helmet wit