The first sports bra was made in 1977 by sewing two jock straps together. Its literal test run was performed by of its two inventors: one jogging forwards wearing the Macgyvered prototype while her friend ran ahead, jogging backwards so she could assess her friend’s “bounciness”.
Carrie Fisher never wore a bra in the first Star Wars movie at the request of George Lucas. He explained to her that in space, her flesh would expand, but her bra wouldn’t, so she would be strangled by her bra.
Around 80% and 85% of women wear the incorrectly fitting bras.