Whether you’re examining your zipper to fix it, you’re curious, or you’re inspecting the garment it’s on, you may have noticed that many of the zippers around you have lettering stamped on them. One ...

Take a look at a zipper on any given pair of pants and chances are it’s inscribed with the letters “YKK,” an acronym stamped on some 7 billion zippers a year. Every one of them is manufactured by a ...

We zip our jeans, jackets, boots and bags without a moment’s thought. The humble zipper, that tiny row of interlocking teeth, is an invention we use every day—and just as often take for granted. But ...

Next time you zip up, or zip down, check out your zipper. There’s a good chance it’ll say YKK. But, what is YKK? I head to South Gate, California, to find out. At Koos Manufacturing in South Gate, ...

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