Why Do Players Wear ‘Sports Bra’-Like Vests in the 2026 World Cup?

Why do players in the World Cup wear black vests that resemble sports bras? According to a report published on July 14, 2026, some players participating in the World Cup are using “smart vests.” These tech-enabled vests monitor and record detailed data such as running speed, heart rate, fatigue levels, and injury recovery processes.

Teams hope to leverage the data collected from these “smart vests” to enhance player performance and increase their chances of winning the competition.