Can someone explain this ad? What was bra burning in the 70s? : r

Vintage Sewing Pattern 1940s Ladies Bra and Bandeau Multi-size Depew 2005 INSTANT DOWNLOAD

Did women really burn their bras in the '70s?

Psycho (1960 film) - Wikipedia

Bonne Bell “Save Your Skin”, 1968 Ad. : r/vintageads

Groovy History

Eiderlon panties (1970s) : r/vintageads

Why Do We Only Remember Bra-Burning?, Essay

Miss America protest - Wikipedia

Sports-Bra Outrage and a Fight Over Everyday Sexism

The Bra Burners, by Art Buchwald, Sept. 12, 1968 / Women's Liberation Movement Print Culture / Duke Digital Repository

Did “bra burning” ever really happen!?

The 'Bra Burning' Miss America Protest - A Brief History of Women's Protests - TIME

Meaning what, 'all the bra-burning'?