If you aren’t puzzle inclined, you can keep this knowledge in your back pocket for the next time you have some kind of zipper ...
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, ...