why do soccer players wear bras

Soccer players wear what look like bras because these are actually GPS tracker vests designed to monitor and collect data on their physical performance during training and matches. These vests hold a GPS device and sensors that track metrics like distance covered, speed, heart rate, and movement patterns. The information helps coaches and sports scientists analyze player performance, optimize training, monitor workload, and reduce injury risk. The vests need to be tight-fitting (hence the bra-like appearance) to keep the GPS unit in an optimal position and ensure accurate data collection. This technology is widely used by professional football clubs worldwide.