The first zipper was called a clasp locker
The innovative fastener we call a zipper first appeared in 1917 as the 'clasp locker,' transforming how we secure everything from clothing to gear.
The fastener we know as the zipper debuted in 1917 under the name 'clasp locker.' This innovation, primarily refined by engineer Gideon Sundback, revolutionized everyday fastening methods. His design featured interlocking metal teeth, a vast improvement over earlier unreliable versions. The U.S. Navy's order for thousands of these 'clasp lockers' for flight suits marked a key milestone in their adoption.
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