You sound like you are in middle school.
Just changed I front of everyone because their was not enough time.
When girls changed their bras they would turn to face the lockers so they wouldn't flash anyone, but they were still fine changing in front of the other girls.
He was so embarrassed after that he never spoke to me again.
I would recommend wearing a bra to gym; if you don't want to take off your bra in gym then just wear the one you wore to school unless you sweat a lot, then you might not want to do this.
It was no big deal because it is for a reason.
And not wear a bra to gym? When you want to explore the freedom going bra less offers you! With more than 300 stores across Greater China, South Korea, Singapore, and Malaysia, the brand continues to strive for a unified and seamless retail experience in stores and online.
October 13th is celebrated worldwide as the No Bra Day.