The Reason All Zippers Seem to Say YKK on Them Dates Back Nearly 100 Years

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If you check out any zipper — from the fly of your jorts to the back of many a couture gown — there’s a pretty good chance it’ll say YKK on it. Like, a 50 percent chance. And all we want to know is why. Why!

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Here’s Why All Zippers Seem to Say YKK on Them