If it is just the same style, and the other party has not applied for a patent, then there is no infringement (generally, no one will apply for a patent for a set of clothes they designed, and wait until the patent comes out. have already passed). It is possible to register a trademark. They can apply to the National Trademark Office to register a three-dimensional trademark, but it must be unique and novel. Ordinary clothing cannot be registered as a trademark. So under normal circumstances, there is no problem in copying other people's brand styles.