Sferoflex's classic flexi-hinge temples provides pressure free comfort. The lightweight yet durable clear polycarbonate lens offers perfect vision acuity at all time. The scratch proof lens features defy marks and smudges, keeping the lens free from distortion viewing. The customizable prescription lenses can accommodate your vision requirement allowing you to comfortably continue your desired unparalleled viewing pleasure. Sferoflex Eyeglasses is Luxottica's premier prescription eyewear aimed for individuals who demand and love to wear classic yet high quality made eyeglasses.