These days, I have been paying attention to the development of waterproof phone pouch . I browsed the overseas mobile phone waterproof bag Market and found that most of them are traditional snap and folding opening methods.

This is already a very backward mobile phone waterproof bag!

Although it is said that the market acceptance is cost-effective, and the use habits, there is a time lag for more advanced styles and technologies.

Now the advanced waterproof phone bag is opened with air tight zipper.

In the past, the old-fashioned ones like bayonet binding and folding were more or less inconvenient to use.

But the zipper opening completely fits people's habits.

Simplify complex things.

Of course, the cost of early airtight zippers was very high,

The previous airtight zipper was a little lacking in ease of use.

However, it has been continuously improved in recent years.

Now the airtight zipper is well drawn.

The application of advanced zippers to waterproof bags has greatly improved our sense of experience, which is handy in these water immersion and wading environments.

It is expected that better waterproof bags can be recommended to overseas consumers, rather than just internal digestion of manufacturing countries. Right?

Air tight zippers were born in the last century, but the real civilian level was not first introduced in Chinese mainland until recently. At that time, the cost was not low. But the relative limit class professional gas tight zipper has already reduced the cost to the original 1/5, which can greatly enhance its market competitiveness. Therefore, today we can use waterproof bags with airtight zippers, which are full of legendary colors.