
10/07/2025
Few people know that the simple zipper on your jacket was once feared as a scandalous device that some critics claimed would lead to moral decline.
The story begins with an incredible missed opportunity. In 1851, Elias Howe Jr., the man who invented the sewing machine, actually patented an “Automatic, Continuous Clothing Closure.” But he was so focused on his other invention that he walked away from it, never realizing he'd abandoned a second revolution.
Decades later, in 1893, an inventor named Whitcomb L. Judson tried again. He debuted his “Clasp Locker” at the Chicago World’s Fair, but the device was clunky, unreliable, and a commercial flop. The idea was there, but the ex*****on just wasn't right.
It took a Swedish-American engineer named Gideon Sundback to finally get it right. Working for Judson's company, he completely redesigned the fastener. In 1917, he patented the “Separable Fastener,” which used small, interlocking teeth. This was the blueprint for the reliable zipper we use today. ⚙️
When the zipper first moved from boots to clothing, it caused quite a stir. By the 1930s, some fashion magazines were championing it for men's trousers, leading to what they called the “Battle of the Fly.”
This debate pitted the traditional, modest button-fly against the faster, more modern zipper. Some moralists were concerned that zippers made clothing too easy to remove, which they believed could encourage improper behavior. 👖
Despite the controversy, convenience won out. By the end of the 1940s, the zipper had become a standard feature in clothing for men, women, and children, changing how we dress forever.
It was a 70-year journey of failure, redesign, and ingenuity that turned a broken clasp into an everyday essential.
Sources: YKK Americas, ThoughtCo, Invention & Technology Magazine