Mailing bags MAILmedia B4 brown with 4.0 cm gusset, pack of 100

MAILmedia B4 brown folding shipping bags are kraft-style mailing envelopes with a 4.0 cm gusset, supplied in a pack of 100. Designed for sending documents, flat goods and small items, the gusset expands to accommodate thicker contents while keeping the exterior profile compact. These bags are intended for business and e‑commerce use where simple protection and efficient packing are required.

Advantages

These brown MAILmedia B4 mailing bags combine a sturdy kraft appearance with a 4.0 cm fold that allows flexible packing of slim and slightly bulkier items. Supplied in a pack of 100, they simplify bulk mailing and parcel preparation, reduce the need for additional inner packaging for flat goods, and are compatible with standard B4 paper formats.

Suitable for

• Sending documents and brochures
• Mailing flat products such as calendars, posters or thin books
• Small e‑commerce shipments that fit B4 dimensions
• Bulk mailings and office dispatches

Key specifications

• Format: B4
• Colour: brown (kraft style)
• Gusset width: 4.0 cm
• Quantity: 100 pieces
• Brand: MAILmedia
• Manufacturer number (MPN): 30011292
• EAN: 4003928615413

How to use

Place the item inside the mailer, ensuring it lies flat against the inner surface. Expand the 4.0 cm gusset as needed to accommodate thicker contents, then seal according to the product’s closure system. Label or apply postage on the exterior in the designated area. For additional protection of fragile or valuable contents, use appropriate inner padding before inserting into the mailer.

Usage recommendations

Use these bags for documents and flat items up to the B4 format and within the gusset capacity; when sending fragile items, add protective padding. Store the pack in a dry place to preserve kraft material integrity.