No, it’s not a fashion statement or a tacit admission that several players are suffering from gynecomastia after failing to take care of themselves since the end of last season. Those “sports bras” you see on young Cubs getting in early work at camp are actually GPS vests designed to track and measure athletes’ performance on the field. Already very popular in numerous other sports, these vests hold a pod between the shoulder blades that contains a 10Hz GPS, an accelerometer, and a magnetometer to capture over 1250 data points per second to measure how much and how hard players are working.
So What’s with Those Sports Bras Cubs Players Are Rocking in Early Workouts?
