U folders or file sleeves are designed for storing and protecting unpunched A4 format materials. The side holes for clamping in the folder are reinforced. They are made of durable antistatic polypropylene foil. The foil prevents ink from being printed on the folder. There are 100 folders in a pack, measuring 210 x 297 mm. The folders are 85 mic thick.

It is important to know

Before purchasing this U-folder, it is important to consider which use case is key in your business environment. The U-folder is optimal for quickly filing single sheets, but it also has certain limitations compared to other types of folders that are not obvious from the specifications. Pay special attention to the practical trade-offs between accessibility and document protection.

• A U-folder allows you to insert individual papers very quickly, but documents fall out of it more easily than from folders with closures - this is important if you often carry several documents at once.
• The transparent design makes it easier to visually inspect the contents, but does not offer significantly greater protection against creasing or wear compared to harder folders.
• This type of folder is best used for short-term storage, handing out, or organizing materials where you frequently access individual sheets; however, for long-term archiving of larger quantities of documents, consider a different solution.

Source of editorial recommendations: general verifiable guidelines for product selection.

In practice

🟢 Archiving smaller sets of documents

The folder is very suitable for storing individual sheets and smaller sets, where quick accessibility is important, but there is no need for additional security when carrying.

🟡 Short-term protection or delivery of materials

Suitable with limitations because it provides protection against dirt and quick access, but does not prevent papers from falling out when being carried.

🔴 Frequent transfer of large amounts of documents

Less suitable, as the open shape of the folder does not prevent spillage, so there is a greater chance of loss or damage to the material during transport.

🟡 Visual classification and categorization

Suitable with limitations – contributes to easy identification, but the folder in this design does not allow for color coding for advanced organization.

Answers to frequently asked questions

Is this U-folder suitable for long-term archiving of a large number of documents?

A folder is more intended for short-term storage or organization of individual sheets and is not the best choice for long-term archiving of larger amounts of material.

What does a thickness of 85 microns mean in practice?

The thickness of 85 microns provides basic protection against tearing or creasing, but does not provide greater strength during frequent use or transport.

Is it possible to quickly browse through the documents in this folder?

Yes, the open format of the U-folder allows for very quick access and browsing of individual documents.

Is the folder suitable for field meetings?

Folders with a closure are more suitable for carrying in the field, as the open design of the U-folder does not prevent papers from falling out.

Description updated: October 2026

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