DUCO Polarized Sports Sunglasses with 5 Interchangeable Lenses UV400 Protection Sports Sunglasses for Cycling Running Glasses LIGHTWEIGHT DESIGN--It is ideal for usage by motorcycle and cycling, driving, running, fishing, racing, skiing and climbing, Trekking or other outdoor activities enthusiasts.Inner frame can be used for shortsighted lenses. FRAME AND LENS--High quality Polycarbonate material and durable enough for long time using and also have 100% UV protection. 5 Functional Shatterproof Interchangeable Lens. The Main Gray lens is Polarized lenses against strong Sunlight, the Other 4 Lenses are colored sunglasses for Different Environmental Condition. All lenses have 100% UV400 Protection Coating, block 100% of UVA, UVB and UVC rays, and harmful blue light. LIFETIME BREAKAGE WARRANTY ON FRAME&LENS--All DUCO Sunglasses are provided lifetime warranty. Whatever the reason is, you can have Lifetime Breakage Warranty on Frame & Lens. 30 DAY MONEY BACK GUARANTEE--100% satisfaction guaranteed. We are not only selling sunglasses but also providing excellent customer service. We promise if you are not happy with DUCO glasses within the first 30 days, we will refund you without any reason. SO NO RISK ON TRY!