What the thing is
A form-fitting undergarment. Chest band. Two cups. Shoulder straps. Usually back-fastening.
It is built from many pieces. A typical design has between 20 and 48 parts, among them the band, gore, side panel, cup, apex, underwire, strap, ring, slider and closure. The chest band and cups carry the weight of the breasts, not the shoulder straps.
Where it came from
- Mary Phelps Jacob—later Caresse Crosby—made it in New York from two handkerchiefs and ribbon to hide a whale bone corset under a party dress.
She patented it in 1914 as “the backless brassière”, the first patent in the newly created US category for brassieres. She sold bras to friends for one dollar and then founded the Fashion Form Brassière Company, with a Boston factory staffed by two women. After a few hundred bras and some department-store orders, her husband persuaded her to close it. She sold the patent to the Warner Brothers Corset Company for US$1,500, and Warner made more than US$15 million from the design over the next 30 years. The history is “full of myths”, and earlier patents include Christine Hardt’s in Dresden in 1899 and Sigmund Lindauer’s mass-production design in 1912.
What it gets right
It supports and covers breasts with minimal rigidity. It allows movement the corset forbids. It separates support from posture control.
The corset’s decline was partly practical. Metal was needed for tanks and munitions in the First World War, and 1920s fashion favoured a boyish figure. Underwires were first developed in the 1930s, but they only became widely popular in the 1950s, once metal was freed up again after the Second World War.
What it gets wrong
It assumes uniform anatomy. It enforces a binary cup-size logic that ignores tissue distribution, density, and mobility. It displaces breath, circulation, and comfort when ill-fitted.
Mass-produced bras are cut for a prototypical woman standing with her arms at her sides, on the assumption that both breasts are the same size. Ten percent of women’s breasts are asymmetrical, with the left larger in 62 percent of those cases. A D cup on a 38 band is larger in volume than a D cup on a 34 band, and sizes vary between manufacturers. Some makers use “vanity sizes” that deliberately misstate the size. An estimated 80 to 85 percent of women wear the wrong size.
Why it matters now
Because its design logic still governs how women’s bodies are measured, marketed to, and medicalised—and because its origin story reveals how domestic improvisation becomes industrial property.
The bra has also moved out from under the clothes. Sports bras were invented in 1975 and were worn under other garments for the next 25 years. After Brandi Chastain pulled off her jersey at the 1999 Women’s World Cup final, they were increasingly worn as outerwear. During the COVID-19 lockdowns, bralettes and soft bras began to replace underwired and padded ones.
Is it worth your time
Yes—if you want to understand how a simple garment redefined bodily autonomy, labour, and commerce in the twentieth century.
