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TueApr 29

National Zipper Day – April 29, 2025

National Zipper Day is on April 29 and we are full of zip for this day! We take many things in life for granted and the humble zipper is one of them. Have you ever paused to reflect on how zippers play a huge role in our daily lives? Zippers come in apparel, purses, boots, etc. and are incredibly useful.

History of National Zipper Day

While the first occurrence of National Zipper Day remains uncertain, there is actually quite an extensive history behind this device that has a whole day dedicated to it. It is believed that Elias Howe may have invented the first zipper and got a patent for what he called the “Automatic, Continuous Clothing Closure” in the 1800s. However, neither did he market his product nor did he get any recognition for it.

In that same period, a “clasp locker” was introduced at the Chicago World’s Fair to fasten shoes. While it somewhat resembled Howe’s creation, it wasn’t the same and lost steam quickly. However, the company that manufactured it, the Universal Fastener Company, continued to be fully operational nonetheless.

A Swedish-American electrical engineer employed at Universal Fastener, Gideon Sundback, is credited with designing the modern zipper. He got the first patent for a “Hookless Fastener” on April 29, 1913, which was later developed into the “Separable Fastener”. It took a while to become popular as it was mostly a shoe fastener in the beginning after which the military started using the device during World War 1 for flying suits. Some manufacturers even used the device on tobacco pouches. Nevertheless, it was precisely a decade after this device received its first patent, that it would actually be called the ‘zipper’. The term was coined by B.F. Goodrich in 1923 because of the sound it made.

National Zipper Day helps to put the humble zipper back in the spotlight, even if just for one day.

National Zipper Day timeline

First Version

The Automatic, Continuous Clothing Closure, the first version of the zipper by Elias Howe, receives a patent.

Clasp Locker

The clasp locker, used to fasten shoes, is introduced at the Chicago World’s Fair.

Modified zipper

Another modified version of the original zipper, the Separable Fastener, is patented.

Zippers Used in Fashion

French designers use zippers in fashion, making them all the more popular after the idea takes off.

National Zipper Day FAQs

What is the purpose of the zipper?

“A zipper, zip, fly, or zip fastener, formerly known as a clasp locker, is a commonly used device for binding the edges of an opening of fabric or other flexible material, such as on a garment or a bag,” as defined by Wikipedia.

Why is YKK on every zipper?

“Those letters stand for ‘Yoshida Kogyo Kabushikikaisha’ which, from Japanese, roughly translates to ‘Yoshida Company Limited’. It’s a zipper manufacturer named after Tadao Yoshida, who founded it in 1934. By one estimate, the company makes half the zippers on Earth, which is more than 7 billion zippers each year,” according to “Insider.”

Who invented the Zipper?

Elias Howe invented the first version of the zipper and received a patent for what he called the ‘Automatic, Continuous Clothing Closure.’

National Zipper Day Activities

  1. Spread the word on social media

    Share your knowledge or some fun facts about the zipper on your social media. Use the hashtag #NationalZipperDay for your posts.

  2. Wear zipper clothes

    On National Zipper Day, what better is there to celebrate than to wear only clothes that have zippers? If you’re heading out, you can also carry a purse that has a zipper.

  3. Sew a zipper

    Why not indulge in a little DIY activity and sew a zipper onto a clothing item. You can even use colorful zippers or make jewelry out of old and unused zippers.

5 Facts About Zippers That You Didn’t Know

  1. Zipper production

    Every year, there are so many zippers produced, that they can wrap the world 50 times!

  2. Zippers are old

    Zippers have been around for over a century, a little more than 128 years.

  3. Zipper usage

    In the United States, approximately 4.5 billion zippers are used every year.

  4. Zipper global market

    Believe it or not, it is estimated that the global market for zippers is over $11 billion a year.

  5. Zipper company

    Approximately 46% of the zippers used in the world today are made by the Japanese zipper manufacturer YKK.

Why We Love National Zipper Day

  1. Zippers make life easy

    Have you ever thought that without zippers we’d be spending minutes using hooks, clasps, laces, buttons, etc. to fasten our clothing? The invention of zippers has definitely made our lives easier. It surely deserves its own dedicated day.

  2. Zippers are fashionable

    Who said zippers are out of style? You can use this day to show off your funky and quirky zippers in clothing and appreciate this invention.

  3. Zippers are functional

    National Zipper Day reminds us of the functionality of the zipper. Plastic zippers, especially, are wind, dust, and waterproof. Moreover, they don't snag, stick, or rust.

National Zipper Day dates

2025April 29Tuesday
2026April 29Wednesday
2027April 29Thursday
2028April 29Saturday
2029April 29Sunday

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