- matte surface
- made of environmentally friendly polypropylene with a thickness of 40mic
- for A4 size documents
- opening from the top
- transparent, antistatic
- reinforced and colored edge
- number of holes: 11
- external dimensions: 230x304mm

It is important to know

Before choosing U-envelopes for business use, it is crucial to consider how often you will access documents and whether you will primarily use them for archiving, transferring, or preparing presentations. This type of envelope allows for a quick overview of individual documents, but it also comes with certain limitations that are not obvious from the basic data.

• Arranging documents with a colored border provides basic visual organization, but the impact of color coding is greatest when a uniform logic is established across the office or department.
• The transparent surface makes it easy to quickly identify the contents without opening, but does not offer complete protection against creasing or falling out if the envelope is poorly filled.
• The U-design is convenient for archiving a small number of sheets and quick insertion, but is less suitable for large sets or frequent transfer of several documents at once.
• The thinner material (40 mic) is sufficient for basic protection and transparency in everyday office use, but with intensive handling it may wear out faster than thicker versions.

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

In practice

🟢 Archiving individual documents

The envelope is very suitable for storing individual sheets or smaller sets, where quick visual inspection and quick access to the contents are important.

🟢 Organization of project documentation by color

The colored border allows for effective separation of documents by project or department, which is useful in larger business environments with established color coding.

🟡 Transfer documents to meetings

An envelope is useful for transporting a small number of sheets, but due to the open top, it is not optimal for transporting multiple documents or for prolonged mobile use, as there is a greater chance that the contents will fall out.

🟡 Preparing offers or presentations

The envelope provides a neat, clear appearance for individual materials, but is not suitable for bulky materials or documents that need to be protected from moisture or frequent handling.

🔴 Long-term archiving of large volumes of documentation

For larger quantities of documents or long-term storage, a thinner U-envelope is less suitable, as it does not provide enough strength and protection for more demanding archival needs.

Answers to frequently asked questions

Are these envelopes suitable for frequent flipping through documents?

They are suitable for quickly inserting and removing individual sheets, but with very frequent use or flipping through, there is a risk of faster wear of the thin material.

How sturdy is the material for typical office use?

The 40 micron thickness offers basic protection against mechanical damage in everyday use, but is not intended for intensive handling or storage of thicker sets.

How important is the choice of colored border for organizing documents?

A colored border is useful for basic separation of materials, especially in an environment with an agreed color system, but it does not improve clarity by itself without proper internal sorting logic.

Do envelopes protect documents from moisture?

The envelopes provide a basic barrier against contact with droplets and dust, but are not waterproof or suitable for protection in humid environments.

Description updated: October 2026

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