We use our own cookies and those of third-parties in order to improve your experience.
You can read more information about our Cookie Policy
Quantity Savings Tier 5+
Subtotal
Free UK delivery over £250*
Free delivery on all UK mainland orders over £250
Free delivery when you spend £250
Limited to UK mainland orders
We’re taking you to the next step please don’t hit back or refresh. If you’re stuck here please contact us.
My dimensions are in:
mmcminches
I'm looking for:
BoxesPostalLabelsBags
Show Me:
Best fit - show the closest matches to these dimensionsItem fit - show only packaging bigger than these dimensions
Find Products
Best fit - show the closest matches to these dimensionItem fit - show only packaging bigger than these dimensions
BoxesBagsPostal
C4 Manilla Board Backed Envelopes are the best solution for sending A4 sized important documents, flat prints or photographs through the post and ensuring they don’t bend whilst in the post. These C4 manilla board backed envelopes combine a strong 120gsm paper front with Please Do Not Bend printed in the bottom left corner for in-transit instructions, and a rigid and robust 1000 micron backing board to ensure your items are kept flat. With a peel and seal adhesive strip closure to make packing fast, giving a strong and reliable seal with no need for extra adhesives. Due to the materials of our C4 manilla board backed envelopes, these envelopes are lightweight and sized to comply with Royal Mail Large Letter sizing to keep your postal costs to a minimum. An excellent eco-friendly solution; completely plastic free, fully recyclable and biodegradable.
Please note: C4 size is up to 229 x 324mm, designed to fit A4 sized items of 210 x 297mm.