Today is #CropTopDay, a movement started by a Toronto high school student named Alexi Halket.

In an event page on Facebook, Halket wrote that a male teacher at Etobicoke School of the Arts complained that a shirt she was wearing one day looked "too much like a sports bra."

"I went in to the office and refused to change or cover up, and I was sent to the principal where we talked for over an hour and came to no conclusion except a threat that if I wore something like this again I would be called in to the office," she wrote.