The Lifeline of Your Suitcase! What is a YKK Zipper?

  • New Trip

Updated: 2025.02.22
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Everyone, have you ever experienced something like this while traveling? Your trip was ruined because the zipper broke at the airport. Zippers are a crucial part of a suitcase. Therefore, when choosing a suitcase, you must also consider the quality of the zippers.
 

This time, I would like to introduce YKK, which has become the world's top manufacturer of zippers. Why are more and more suitcases equipped with YKK zippers? We will thoroughly dissect the true value of "YKK zippers" that professionals swear by! If you're interested, please read this article.

Table of Contents

  • What is a YKK zipper?

  • The Core of YKK's Technological Superiority

  • YKK vs. Other Zippers

  • Recommended Suitcases with YKK Zippers

  • Summary

  • FAQ

1. What is a YKK Zipper?

YKK Fasteners (commonly known as YKK) is a globally renowned zipper brand manufactured by Japan's Yoshida Kogyo Kabushikigaisha. Founded in 1934, it now boasts the world's largest market share and is known for its high quality and reliability. As the world's largest zipper manufacturer, its products are valued for their high quality and durability.

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2. The Core of YKK's Technological Superiority

It's no exaggeration to say that a suitcase zipper is the "lifeline that determines the success or failure of a trip." YKK is chosen for its unique technology that withstands the impact of airplanes, overloading, and the risk of theft.

 

Durability

Features a removable slider with an internal spring, making it resistant to detachment from impact.

In US tests, cases equipped with YKK zippers withstood over 10,000 openings and closings, three times more than competitors.

A JAL mechanic commented, "Even with luggage thrown by airport staff, the damage rate for YKK is less than 1/5."

 

Security

High-end models are equipped with zippers featuring an auto-lock mechanism.

Pulling the tab up automatically locks it, preventing unauthorized opening.

NewTrip's 0201 model suitcase comes standard with YKK zippers on both the exterior and interior.

It offers excellent abrasion resistance in addition to its appearance.Recommended!

 

Water Resistance

Adopts "AquaGuard®NATULON®" technology.

Evolved into an environmentally friendly product using recycled PET for the tape.

Furthermore, by switching the main water repellent used for water repellent processing to fluorine-free, it contributes to improving the working environment in the manufacturing process.

Travel writer Mr. Yamada shared his experience: "During a business trip to Hong Kong during a typhoon, the contents were completely dry."

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3.YKK vs. Other Fasteners

Revealing experimental results that prove "YKK is expensive because it's YKK," not "YKK is expensive!"


Extreme Durability Test
Method: A YKK-equipped case vs. a non-YKK zipper case were each loaded with 20kg of luggage, and opened and closed 50 times daily.
Results:

Overload test
A drop test was conducted with 30 kg of contents and the zipper closed.
YKK: Zipper slightly deformed but could not be opened.
Other companies: Center burst open, contents spilled out.

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Conclusion: YKK zippers differ from cheaper alternatives in terms of durability.

YKK meets the JIS standard specifications and offers products of more consistent high quality.

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4. Recommended Suitcases with YKK Zippers

As mentioned earlier, more and more suitcase companies are now using YKK zippers for their safety and durability. If you're still unsure which brand of suitcases with YKK zippers to choose, I'd like to introduce two types of suitcases below.

 

New Trip 0201

Both the exterior and interior are equipped with YKK zippers as standard, ensuring long-lasting use.

High-quality interior fabric is scratch-resistant and stain-resistant, offering excellent durability.

Also equipped with a TSA dial lock!

Check it out now

New Trip 1302

Uses a superior material: aluminum.

The world's first 0 to 90 degree angle adjustment system allows the front part to be stopped freely at any angle.

The trolley handle can be adjusted to 10 different heights with 1cm intervals.

Utilizes YKK zippers for smooth opening/closing and durability.

Check it out now
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Summary

What do you think? In this article, we explained YKK zippers. Simply put, YKK zippers = durability x security x design. If you want to reduce travel stress, it's time to pay attention to zippers. For your next suitcase purchase, be sure to look for "YKK"!
And if you're struggling to choose a suitcase, why not try the New Trip suitcase introduced in this article? The New Trip store also has many other attractive carry-on cases, so we hope you'll take a look.

よくある質問

1. Why do you recommend "New Trip"?

New Trip is a brand that offers high-quality travel goods for everyone who loves to travel. From suitcases to canvas backpacks and practical items, New Trip has a wide range of travel essentials.

2. What is the difference between a suitcase and a carry-on?

Originally, suitcases were recognized as having no wheels and being shaped like trunk cases. On the other hand, carry-on cases were bag-shaped cases with wheels. Over time, suitcases also started to have wheels, making them almost indistinguishable from carry-on cases.

3. How do you choose a suitcase cover?

Suitcase Cover The key points to consider when choosing a suitcase cover are size, design, material, handle openings, and washability. The first thing to consider is the size. It needs to fit the size of the suitcase you are using.

4. What is the size of carry-on suitcases allowed on board?

For most major airlines, the general carry-on size for suitcases is 55cm in height, 40cm in width, and 25cm in depth, with a total of 115cm for the three dimensions and a weight limit of 10kg.

5. Are front-opening suitcases heavy?

Front-opening suitcases can sometimes be slightly heavier than traditional double-opening suitcases. This is because the front-opening design requires additional framework and opening mechanisms in the suitcase.

Popular Suitcases

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・YKK zippers

・Ultra-lightweight

・20% increased expansion capacity

・TSA dial lock

Check it out now

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