Serengeti GranadaEspresso /Polarised Drivers LensesSerengeti Granada's uncomplicated styling gives it an air of refinement. But its unique shape commands attention. Branding appears at the temple for a finish worthy of a frame from Serengeti's revered Classics Series.Granada is constructed from lightweight Monel metal for comfort and durability. Tweak Granada's nose pads for a customised fit. Spring hinges add strength to the frame.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.Spectral Control fine tunes light transmission. Now colours are vibrant and the view is sharp. Plus 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. UV400 lenses. Serengeti sunglasses come with a one year manufacturer's warranty.