The fashion brand launch the sunglasses  is very common ,but about LV,from the new material to new design ,but after every aspect of the masterpiece for more than two years, while the LV do not leave the hands of the outsourcing of production, control of production process in person.and each frame on the words of Louis Vuitton, are making use of sophisticated methods of the mosaic, assembled at the inner frame, rather than ordinary stamping; coupled with hand-built frames,so every type sunglasses are very perfect.