Persol's Crystal Glass Lenses are crafted using a traditional glass-forming process that dates back to the brand's origins in 1917 in Turin, Italy, delivering unrivalled optical clarity and depth of vision. Scratch-resistant and exceptionally durable, these glass lenses are finished with a meticulous anti-reflective coating for sharp, clear vision in all lighting conditions without distortion. With 100% UV400 protection, Persol Crystal Glass lenses protect your eyes while offering the purest visual experience available in a sunglass lens.