A lot of footballers wear a bra under their shirt or during their training session but why?
The so called GPS bras are common in the big football clubs. They're used for the training or test matches. These bras record the movements on the pitch and the physical data. Like this it's easier to analize: how fast is the player, where is he moving to, what is his heart rate like etc.
The neoprene bra is made out of a GPS and a little monitor with a chip in it which records all the movements. They can help to optimizethe player's movements.
A number of European Football clients in action mid-week;@FCBayern @valenciacf_en @PSG_inside @FCPorto to name a few pic.twitter.com/UdQsfR0E7v
— GPSportsSystems (@GPSportsSystems) 2 de marzo de 2016
See Also
Why Do Quarterbacks Lift Their Leg In Football? Explained - vIQtory SportsHow to Teach Boys to Pee Standing UpFootballers don't 'wear bras' - sporting reasons for under-shirt clothing explained | Goal.com US"Why are the players wearing sports bras?!" | An answer to the burning question | New England Revolution