The First Sports Bra Was Literally Just Two Jockstraps, Sports bras literally started as two jock straps.

Second Skin Science History Institute

How the First Sports Bra Got Its Stabilizing Start, At the Smithsonian

How the First Sports Bra Got Its Stabilizing Start

Jockey Sport® Silver Microfiber Jock Strap

Sports bra - Wikipedia

Gossard's 'Cleavage-Enhancing' Sports Bra To Make Working Out Even

Game On - Issuu

How two jockstraps sewn together changed women's lives for ever

The Untold Truth Of Sports Bras

Sports bra - Wikipedia