Expandable Cardboard Mailers – Protective Packaging for Books, Prints & Documents

Pack securely. Protect the details. Make a professional impression.

These expandable cardboard envelope mailers provide practical protection for books, magazines, documents, calendars and prints. With four sizes to choose from, you can match your packaging to your contents, from paperback books to larger artwork.

Made from rigid E-flute corrugated cardboard, they help protect against bending, scuffs and corner damage during transit. The expandable design accommodates thicker items, giving you the flexibility to pack a range of products.

A peel-and-seal adhesive closure makes packing quick and straightforward, while the integrated tear strip allows your customer to open their delivery easily. Supplied flat, these mailers also keep storage space to a minimum.

Plastic-free, made from 100% recycled cardboard and fully recyclable, they offer a practical alternative to padded envelopes and bubble mailers.

Key Features

• Protective E-flute cardboard – rigid construction helps minimise bending and transit damage

• Expandable capacity – accommodates flat and thicker contents

• Fast peel-and-seal closure – no additional sealing tape required

• Easy-open tear strip – a convenient opening experience for your customer

• Four sizes available – suitable for books, documents, prints and more

• Space-saving storage – supplied flat and ready to use

• Plastic-free and fully recyclable – made from 100% recycled cardboard

Choose Your Size

Please note: dimensions refer to the flat mailer, rather than usable internal capacity. Expanding the depth reduces the available length and width. Product codes A3, A4 and A5 are manufacturer references, not standard paper sizes.