LOUIS VUITTON Cyclone Sunglasses - Size S Black Acetate. Size E. new this season, the cyclone sunglasses are offered in an acetate smaller size edition, a modern take on the house’s iconic shades. This bold style features an exaggerated frame with angular lines and a deep bevelled front. The monogram flower signature on the bridge is reinterpreted here with light-reflecting crystals for a glamorous attitude.