The luxury clothing designer has teamed up with Canadian company OMsignal to develop the Polo Tech shirt, which is capable of measuring movement, heart rate, respiration, stress levels and energy
Ball boys at the US Open are wearing the shirt for the first time this week, while tennis player Marcos Giron will wear it during his practice sessions.
Accelerometer and gyroscope data is collected and stored in a black box situated beneath the rib cage, and can be sent to a dedicated smartphone app.
The shirt is yet to receive a public release date or pricing, but the firm hopes to make it available for use outside of sport in the future.
"Our vision is that this will transcend sports to help us at every age and in every aspect of life," senior vice president David Lauren said.
"Reaching far beyond just the needs of elite athletes, Polo Tech will offer innovative technology for all ages and lifestyles to promote general wellness and quality of life."