STYLE. SUBSTANCE. SERENGETI. THERE'S A LOT MORE TO SERENGETI THAN MEETS THE EYE. The unsurpassed, patented technology in every lens gives you sharp, crystal clear vision. Our lenses also filter out the damaging rays that create strain and fatigue and can permanently damage the eye. With Serengeti, it's a better world. And you're in the driver's seat. Your eyes have never had it so good. THE CHADWICK A classic masculine design, with angular lines to create a chic frame with a unique character. Chadwick’s frame material is a combination of eco-friendly acetate and metal, added to this winning duo is our mineral lens for the ultimate visual experience of the world around you. The engraved metal bridge is the final sophisticated touch to this timeless design.