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Manilla Letter Cardboard Envelopes are one of the most popular types of cardboard envelopes; perfect for sending A5 and A6 sized important documents and ensuring they don’t bend whilst in the post. Our range of manilla letter envelopes comprises 3 popular sizes of board backed envelopes; each are made from a 1000 micron backing board to add rigidity to your mail, have a manilla paper front to keep your mail lightweight to not add to your postal charges, and are sized to comply with the smallest Royal Mail sizing. All of our letter sized manilla board backed envelopes are an excellent eco-friendly solution – fully recyclable, biodegradable, and completely plastic free. Supplied in boxes for easy handling and neat storage.
Please note: Letter sizing is up to 240 x 165 x 5mm with a 100g weight limit.
