Dior TwistingThroughout the Dior collections Raf Simons experiments with lines. This perfectly translates to the Dior Twisting sunglasses. Three interlaced lines are hand made from the finest black Italian acetate. They loop around the iconic oval metal bearing the Dior emblem and continue crafting the temples. Black acetate forms the rectangular front. UV400 lenses. Dior sunglasses come with a one year warranty.