Cardboard Envelopes 400 x 278 mm (A4) - Perfect for delivering clothing, big books, cook books, puzzles, paintings, arts & craft materials, posters, maps, calendars and lots of other big, flat items (PACK OF 50)

Introducing our A4 cardboard envelope large mailer, perfect for securely mailing big books, sheet music, clothing, cookbooks, puzzles, artworks, and more. Crafted from stiff 450 gsm material, these envelopes feature specially designed folds that provide robust impact protection around the edges, reducing the risk of damage during transit. The envelope includes our innovative peel'n'seal / tear-strip system for effortless sealing and convenient opening upon receipt.

Made entirely from 100% recycled materials and fully recyclable, our Lil A4 envelopes offer a sustainable, plastic-free alternative to standard padded envelopes or bubble mailers. Unlike eco-friendly padded envelopes that use more material and are slower to pack without offering additional protection or cost savings, our envelopes are designed to streamline packing processes while minimizing environmental impact.

Co-developed with one of the Internet's largest retailers, our envelopes are trusted worldwide for their reliability and environmental responsibility. Explore our complete range of corrugated envelope flatpacks and discover why our solutions are preferred by leading online retailers globally.