Manila Board Backed Envelopes C4/A4 & C5

Certificates, photographs, prints, contracts and artwork all share one enemy in the post: the fold. Manila Board Backed Envelopes put a rigid card backing behind your contents, so documents arrive flat, crisp and exactly as they were sent, whether they're going across town or across the country.

A bold "Please do not bend" message printed in red across the front tells every pair of hands in the postal chain to take care, while the self-seal adhesive strip closes securely in seconds with no need for tape or licking. The smooth manila face takes address labels, stamps and franking cleanly for a tidy, professional finish.

Two sizes cover the essentials: C5 (229 x 162mm) for folded A4 letters, certificates and photos, and C4 (324 x 229mm) for full A4 documents, prints, brochures and calendars without folding. Both are Royal Mail compliant for straightforward, predictable postage.

Made from sustainably sourced FSC board and 100% recyclable and biodegradable, they're a responsible choice for solicitors, estate agents, photographers, artists, schools, printers, eBay sellers and anyone posting paperwork that matters. Available from a single sample through to packs of 10, 20, 50 and full boxes of 125.

Free UK mainland delivery on orders over £25. Order before 2:30pm (Mon–Fri) for same-day dispatch; standard delivery is 3–4 working days. Priority delivery is available at checkout.

30-day returns: if you order the wrong size or change your mind, return unused items in their original packaging within 30 days for a credit, exchange or refund (subject to our terms).

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