Huang Xican's vest is a Y-shaped black smart vest. Huang Xican is a Korean professional football player, a striker of the Korean national men's football team, and plays for the Wolves Rangers Club of the English Football Super League. In the 2022 World Cup, Huang Xican's vest is a Y-shaped black vest, which is a smart vest called GPSports. Its main function is to monitor the athlete's physical condition, and can receive all kinds of heart rate data in real time, and calculate the athlete's speed, acceleration, impact force and other data.