Madison Cipher Glasses 3 Lens Pack The classically styled Cipher frame offers an excellent field of vision and superb eye protection. Half frame design is lightweight and optimised for guaranteed performance on any terrain. 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 protection 3 Lens Pack The 3 Lens Pack contains a tinted lens for bright conditions, an amber 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 move. Multi-Purpose Both versatile and stylish, Madison Optics maintain their good looks on the road or trails TR-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 bending Secure Fit Madison frames work seamlessly with your helmet with non-slip rubber tips for maximum comfort and security. The flexible nose-piece allows you to dial in the perfect fit, adjusting for extra venting if desired Soft Pouch Madison have included a soft pouch for lens cleaning and protection on the move. An optional RX insert is available to buy separately for prescription lenses Size Spec Lens Width: 129mm, Lens Height: 56mm, Frame Width: 141mm, Bridge Height: 13mm, Arm Length: 127mm Limited Lifetime Warranty At Madison, they pride themselves on offering an excellent product with aftercare to match. That's why this product is covered by their Limited Lifetime Warranty