AirPro Nr.1 brown paper envelope, size 100×165 mm, is a single-layer mailing envelope designed for everyday postal and office use. Its rectangular flap and standard dimensions make it compatible with most postal services and suitable for sending small flat items such as letters, receipts, invoices and thin documents. The envelope provides a practical and economical solution for routine correspondence where lightweight protection and straightforward handling are required.
Advantages
This brown paper envelope combines simple construction with low weight, keeping postage costs down while providing sufficient protection for lightweight contents. The standard 100×165 mm format fits common small documents and printed materials without the need for folding beyond typical business correspondence. Its uncoated paper surface is easy to write on or label, and the rectangular flap simplifies sealing with adhesive, glue or tape depending on postal requirements.
Suitable for
- Mailing personal or business letters and notes
- Sending receipts, invoices and small printed documents
- Distributing coupons, vouchers or cards
- Internal office correspondence and interdepartmental mail
When it may not be suitable
The envelope is not intended for bulky, heavy or bulky items; its single-layer paper construction offers limited cushioning and tear resistance compared with padded or multi-layer envelopes. It is also not suitable for items that require moisture-proof, tear-resistant or tamper-evident packaging.
Key specifications
- Material: single-layer brown paper
- External dimensions: 100 × 165 mm
- Flap type: standard rectangular flap
- Surface: writable/uncoated for pen, pencil and adhesive labels
- Intended use: mailing small flat items and correspondence
How to use
Insert the document or flat item so it lies flat within the envelope without overfilling. Close the rectangular flap and seal according to local postal rules — use the adhesive closure if included or apply glue or tape where required. Address the envelope directly on the surface or attach a printed label, ensuring recipient and sender details are clear and legible. For important or delicate contents consider adding an inner protective sheet or using a padded envelope instead.
What to consider before purchase
- Confirm the 100×165 mm size fits your document dimensions and postal requirements
- Assess whether single-layer paper provides sufficient protection for your contents
- Check postal service rules for sealing, labeling and postage based on weight
- Decide if a padded, water-resistant or larger envelope is needed for fragile or bulkier items
Usage recommendations
Use this AirPro Nr.1 brown paper envelope for routine correspondence, invoices and receipts where lightweight, cost-effective mailing is sufficient. For enhanced protection, include an inner protective sheet or choose a different envelope type suited to fragile or moisture-sensitive contents.
