hello! R is the abbreviation of R trademark, which means registered trademark when used in trademarks. The circle R is the mark of "registered trademark", which means that the trademark has been registered in the State Trademark Office and has been examined and approved by the Trademark Office, and has become a registered trademark. All brands of registered trademarks of men's wear have the word R, such as Bosideng, Hailan House, Dzheniya, Playboy and so on. Thanks for reading!