Anon used a specifically engineered tapered cut to give the Truth Sunglasses' large single lens distortion-free image quality, so you can see the world the way it really looks. Once they got the Truth Sunglasses unique look & lens quality down, Anon went to work to make them tough. They started with Optyx Descentered lens material which resists scratching better than polycarbonate & weighs less than glass. The acetate frames hold up to tons of abuse around town, & stainless steel makes the hinges ultra burly.