Serengeti MeranoDark Tortoise / Polarised Drivers LensesSerengeti Merano's sleek frame is simple and stylish. And its subtly kinked brow adds character.This one features Serengeti's famous Drivers Lens. Designed especially for the road, it makes colours from objects even more vibrant. And it's adapted for all driving conditions. Plus contrast is amped up.Merano comes with patented Spectral Control, which fine tunes light transmission. Now colours are vibrant and the view is sharp. Spectral Control also helps block most blue light (this type of light usually damages eyes and causes eye fatigue).Serengeti lenses are photochromic too. So they lighten and darken with the conditions (even inside the car where UV is minimal). Polarisation beats blinding glare – so there's no need to squint.Merano is made using grilamid TR90 for superior durability. But these frames have the added benefit of being exceptionally light, flexible and comfortable. Spring hinges add even more toughness.UV400 lenses. Serengeti sunglasses come with a one year manufacturer's warranty.