The zipper transformed how people dress, work, and even think about clothing. What started as a niche fastener for boots and military money belts in the early 1900s became one of the most consequential inventions in everyday life, reshaping fashion norms, accelerating wartime production, challenging gender politics, and building a global industry now measured in billions of units per year.
From Novelty Fastener to Household Name
Swedish inventor Gideon Sundback designed the modern zipper using a slider and two rows of interlocking metal teeth. His version was more durable and far cheaper to produce than earlier attempts at slide fasteners. By November 1913, his company was manufacturing a thousand zip fasteners a day.
The device didn’t even have the name “zipper” yet. That came in 1923, when the B.F. Goodrich company put slide fasteners into their rubber boots and trademarked the model name “Zipper,” borrowing from “zip,” a word that had meant “to move rapidly” since the mid-1800s. The boots eventually fell out of fashion during the Great Depression, but the name stuck to the fastener itself. Before that branding moment, most people had never encountered the technology. The first real commercial success came during World War I, when the Hookless Fastener Company sold nearly all of its 24,000 units as money belts for U.S. sailors, whose uniforms lacked pockets.
Changing How Men and Women Got Dressed
The zipper’s biggest early cultural impact was on clothing, and the shift didn’t happen without controversy. For men’s trousers, the pivotal year was 1937. Esquire magazine declared the zipper the “Newest Tailoring Idea for Men,” and French fashion designers began championing it over the button fly in what the press called the “Battle of the Fly.” One of the zipper’s advertised virtues: it would eliminate the “possibility of unintentional and embarrassing disarray.” Within a few years, button flies on men’s pants went from standard to outdated.
Women’s clothing took a different path. In the 1920s, many people considered it scandalous to put zippers on women’s garments. The logic was blunt: easier to remove clothes meant easier to have sex. That moral resistance kept zippers largely off women’s dresses and skirts for years. It wasn’t until the 1930s that Italian designer Elsa Schiaparelli began incorporating zippers into her couture collections, deliberately pushing back against the taboo and helping normalize the fastener for women’s fashion. The zipper didn’t just change clothing construction. It forced a public conversation about women’s autonomy over their own bodies and wardrobes.
A Wartime Workhorse
World War II turned the zipper from a fashion convenience into essential military hardware. Zippers appeared on flight suits, life jackets, sleeping bags, and gear bags across every branch of the armed forces. During the winter of 1944-45, the U.S. Army issued wool sleeping bags in large quantities to troops in Italy and northern Europe. After that first large-scale field use, soldiers overwhelmingly agreed on one improvement: a longer zipper to allow faster exit from the bag, a potentially life-saving detail in combat conditions.
The war’s demand for millions of zippered items forced manufacturers to scale up dramatically. Factories that had been producing zippers for civilian clothing pivoted to military contracts, and the production volume never really came back down. When the war ended, the infrastructure for mass zipper manufacturing was already in place, and returning soldiers were accustomed to the fastener on everything from jackets to duffel bags. Civilian adoption accelerated rapidly through the late 1940s and 1950s.
Rebellion on a Metal Track
The zipper also became a cultural symbol in ways its inventors never intended. In 1928, Irving Schott designed the Perfecto leather jacket for motorcyclists, using a zipper for the front closure instead of the buttons found on military-issued jackets. The asymmetric, double-breasted cut let riders lean over their handlebars comfortably, and the jacket sold for just $5.50. It became an instant hit among bikers.
When Marlon Brando wore a zippered leather jacket in the 1953 film “The Wild One,” the look became synonymous with youth rebellion. Schools began outlawing the “Brando look” because the leather jacket was perceived as a symbol of defiance against authority. Decades later, bands like The Ramones, The Sex Pistols, and Duran Duran kept that rebellious edge alive. The zipper, once a practical improvement over buttons, had become visual shorthand for outsider identity and countercultural cool.
Enabling Extreme Environments
Beyond fashion and military use, zipper technology evolved to meet demands no one anticipated in 1913. NASA’s pressure suits for the Mercury astronauts relied on specialized pressure-sealing zippers to keep pilots alive in the vacuum of space. Astronauts entered their suits through a zipper running diagonally across the chest, and suit technicians followed strict procedures to close waist and entrance zippers, snap reinforcements into place, and verify that no zipper would be opened while the suit was pressurized. A failed zipper at altitude or in orbit could mean death.
This pushed zipper engineering into entirely new territory. Manufacturers developed airtight and watertight zipper designs that later found their way into drysuits for divers, hazmat suits, and sealed storage for sensitive equipment. The humble clothing fastener became a critical component in life-support systems.
A Billion-Dollar Global Industry
The scale of the zipper industry today reflects just how deeply the invention embedded itself into modern life. YKK, the Japanese company that dominates global zipper manufacturing, surpassed 10 billion annual zipper unit sales in its 2024 fiscal year. That’s not a one-time spike: the company hit the same milestone in 2018 and 2021. Ten billion zippers in a single year, from one company, for a world population of eight billion people.
Zippers appear in products ranging from jeans and backpacks to medical devices and automotive interiors. The manufacturing ecosystem supports jobs across dozens of countries, and the supply chain for zipper components (metal teeth, polyester tape, sliders, stops) feeds into nearly every corner of the global textile and industrial goods market. A device that started as a replacement for buttons and hooks became a foundational element of modern manufacturing, one so ubiquitous that most people never think about it until one breaks.