Folding mailing bags MAILmedia C4 with window 4.0 cm fold, pack of 100

MAILmedia Folding mailing bags C4 with a 4.0 cm window fold (pack of 100) are designed for sending and storing A4 documents, invoices and small catalogs. The C4 format accommodates unfolded A4 sheets, while the integrated transparent window and 4.0 cm fold allow addresses or invoice details to be visible without additional labels. These bags combine simple handling with protection against dirt and light mechanical stress during postal transit and office archiving.

Advantages

The folding construction enables quick insertion and a secure closure without separate envelopes or folders, reducing packing time in bulk mailings. The transparent window provides a clear display of recipient information, helping to avoid re-labelling. Made for practical use, these C4 mailing bags offer consistent size and finish across the pack, ensuring uniform handling by postal services and automated sorting equipment.

Suitable for

• Mailing of A4 invoices and statements
• Sending small catalogs, brochures or price lists
• Office archiving of correspondence and single-sheet documents
• Bulk mailing and postal dispatch operations

Key specifications

• Format: C4, fits A4 sheets unfolded
• Window fold depth: 4.0 cm
• Window: integrated transparent panel for address viewing
• Pack quantity: 100 pieces
• Material characteristics: protective outer layer for light dirt and abrasion resistance

How to use

Place A4 documents inside the bag so that the recipient address or invoice information aligns with the transparent window and fold. Fold the top flap along the predefined 4.0 cm fold to secure the contents and create a neat edge for closing. For postal use, ensure any adhesive or sealing method you choose complies with postal service requirements. Store unused bags flat in a dry environment to preserve shape and window clarity.

Usage recommendations

Use these mailing bags for single-sheet documents or slim multi-page packets; avoid overfilling to prevent deformation and ensure reliable window visibility. For sensitive documents, add an internal protective sheet or use additional packing to increase moisture protection.