The age of the corset
Before the bra, Victorian women layered chemises under corsets stiffened with whalebone — some with 60 to 100 bones sewn in — to shape the torso into an hourglass. The term "corset" itself dates to the 1830s. Hook-and-eye closures, introduced later in the century, finally let women fasten their own corsets without help. The goal was rarely bust support; it was waist reduction, worn under the era's full skirts.
Herminie Cadolle splits the corset in two
Parisian designer Herminie Cadolle is widely credited with the first true precursor to the bra: she divided the corset into two separate garments, a lower piece for the waist and an upper piece — the "corselet gorge" — to support the bust. In 1889 she patented a standalone breast supporter, which became a sensation at the 1900 Exposition Universelle in Paris. By 1905, the top half was being sold entirely on its own.
Corsetry goes mainstream in print
By the turn of the century, corset advertisements were a fixture of American women's magazines like the Ladies' Home Journal. Mass manufacturers such as DeBevoise and Bien Jolie were already advertising early "bust supporters" as an alternative to the boned corset.
Mary Phelps Jacob invents the "backless brassiere"
In 1910, 19-year-old New York socialite Mary Phelps Jacob was dressing for a debutante ball in a sheer, low-cut gown when her whalebone corset cover poked out from underneath. She had her maid bring two silk handkerchiefs, pink ribbon, and a needle and thread, and stitched together an improvised bra on the spot. Other women at the ball asked for their own. She filed a patent on February 12, 1914, and received U.S. Patent No. 1,115,674 for the "Backless Brassiere" that November — the year "brassiere" had already entered the Oxford English Dictionary (1911).
Sold to Warner Brothers Corset Co.
Jacob (by then remarried, as Caresse Crosby) founded the Fashion Form Brassière Company but struggled to make the business profitable. She eventually sold her patent to the Warner Brothers Corset Company of Bridgeport, Connecticut, for $1,500. Warner went on to earn more than $15 million from the patent over the following three decades.
The flat, boyish flapper line
The flapper silhouette called for a flattened bust, and bandeau-style bras — simple bands with little shaping — dominated. Structurally, though, the decade quietly modernized the garment: underwire appeared as early as 1923, and adjustable straps followed soon after. By the second half of the 1920s, the bra existed in something close to its modern form, though most women still wore all-in-one "combination" undergarments rather than a separate bra.
"Brassiere" becomes "bra" — and gets sized
The word was shortened to the now-familiar "bra," and in 1932 the S.H. Camp and Company assigned letters A through D to a new system of cup sizing — the foundation of how bras are still sized today. Fashion itself swung back toward a curvier, more natural silhouette after the flat 1920s line, and separate cups (rather than a single flattening band) became standard.
The bullet bra and the "sweater girl"
Pointed, stitched "bullet" or "torpedo" cups became the era's signature shape, popularized by pin-up icons like Jayne Mansfield and Lana Turner — the so-called "sweater girls." The style was structural and exaggerated, built to hold its cone shape regardless of the body underneath. Late in the 1950s, the invention of spandex (1959) set up the next major shift: stretch fabrics that could finally fit a body instead of just armoring it.
Mass-market advertising matures
By the early 1960s, bra advertising was a routine presence in mainstream magazines, aimed squarely at teenagers and young women as a rite of passage rather than a specialty item.
The Miss America protest — and the "bra-burning" myth
On September 7, 1968, around 200 feminist and civil rights activists protested the Miss America pageant in Atlantic City, tossing bras, girdles, false eyelashes, and magazines into a "Freedom Trash Can." No bras were actually set on fire — the enduring "bra-burning feminist" image was a media invention, likely conflated with contemporary draft-card burning protests. More on this myth in Pop Culture.
The sports bra is invented
University of Vermont costume designers Lisa Lindahl and Polly Smith, with help from Hinda Miller, sewed two jockstraps together to build the first "jockbra" — soon renamed the Jogbra. It was the first garment engineered specifically to minimize breast movement during exercise, and it created an entirely new product category almost overnight.
Madonna's cone bra
Designer Jean Paul Gaultier built a pink satin cone bra — a knowing throwback to the 1950s bullet bra — for Madonna's Blond Ambition Tour. Worn as outerwear over a suit, it turned an undergarment into a pop icon and helped launch the "lingerie as fashion" trend that defined the decade.
The Wonderbra moment and the T-shirt bra
Though trademarked back in 1955, the push-up Wonderbra exploded in popularity in the early '90s on the back of its "Hello Boys" billboard campaign. At the same time, new microfiber and foam-molding technology enabled the smooth, seamless "T-shirt bra" — arguably the biggest quiet shift in how the average bra was actually constructed.
Adhesive cups and invisible support
Bragel International released the NuBra around the turn of the millennium — fully adhesive silicone cups worn without a band or straps at all, designed to disappear under backless or strapless clothing.
Wireless, size-inclusive, and unstructured
The last decade has favored comfort and softness over engineering: wireless bralettes, size-inclusive direct-to-consumer brands, and a broader loosening of the idea that a bra is mandatory at all. Athleisure blurred the line between the sports bra and everyday outerwear, echoing — a century later — the same impulse that drove Mary Phelps Jacob to reach for a ribbon and two handkerchiefs.