You are not only buying glasses, but also a Porsche brand. As far as the glasses industry is concerned, this is a sky-high price at present, and any glasses other than the brand cannot be sold at this price. No matter what kind of material and design it is, unless it is made of pure gold. Not to mention that the material contains titanium and is not pure titanium. I have been in the glasses industry for more than ten years. I have made glasses for Mercedes-Benz and Buick, but I have never sold them at this price. As for whether it is a parallel import, you can only check it from the brand LOGO. Carefully check whether the patterns, colors, fonts, and sizes of all brand LOGOs on the frame are consistent, whether they are easy to fall off and skew, and in terms of workmanship, check whether the same part of the frame is symmetrical from left to right. , if these are normal, they should be genuine.