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Self-seal Manilla envelopes

(6 references)
Up to 20% OffNew products
From  £14.25  ex. VAT
See prices
Up to 48 hours FREE delivery
  • For mailing confidential business information
  • Minimal risk of print show-through
  • A range of sizes, all with self-sealing flaps
  • Made from 80 – 90gsm Manilla paper
  • Sold in packs of 250, 500 or 1000 envelopes
Read more …
Eco-responsible product
New products


Price ex. VAT per pack Up to
20% Off
1 +5 +10 +
  ENM1S 22011080self sealDLletter100017.8515.9914.25
 1A98 22011080self sealDLletter100018.4016.5514.70
  ENM2S 16222980self sealC5letter50020.4018.3516.30
  ENM4P 16222980adhesive stripC5letter25024.8522.3519.85
 1D25 22932490self sealC4letter25021.4919.3017.19
  ENM5P 22932490adhesive stripC4letter25023.7021.3018.95
Detailed description

Safely send confidential documents

Our self-seal Manilla envelopes are the secure choice for mailing confidential business information. Made from light brown paper, there’s minimal risk of print show-through and as Manilla paper is naturally stronger than standard paper, these envelopes are less likely to tear in the post or disintegrate in the rain.

Available in a range of sizes, all with self-sealing flaps, you can speed up the process of sending letters, invoices or statements. Our Manilla envelopes are windowless to ensure information inside remains secure. We also offer the DL envelope with a window to save on labelling costs.

Call our packaging specialists on 0800 542 44 28 to order yours.

Sold in packs of 250, 500 or 1000 envelopes.

Quantity Available in packs of 250, 500 or 1000 envelopes. Stock up and save with our large order discounts on 5 or more boxes.

Size and shape options These self-sealing envelopes are available in a range of 7 sizes and formats to suit your paperwork.- Choose C4 to hold unfolded A4 paper- Choose either B5 or C5 to hold A5 paper or A4 sheets folded in half- Choose DL to hold A4 paper which is folded into 3 equal sections (like a traditional letter) Please note the DL envelope with ref. 1A98 has a window measuring 39 x 93mm. Our DL envelopes have the opening flap on the long edge.The C4 and C5 envelopes have the opening flap on the short edge.

Materials Made from naturally strong 80 – 90gsm Manilla paper to protect your sensitive documents in the post. All sizes have self-sealing flaps to improve efficiency.

Environmental information All RAJA envelopes are made from 100% recycled paper and have a minimum of 90% post-consumerwaste to support your green credentials.

Delivery information Delivered in boxes for easy use.
Customer reviews
Most recent customer reviews
Fab Quality for price
By Alexander on 09/04/21 15:15 - Verified Purchase by TrustPilot
Reference : ENM2S
By Bruno on 16/12/20 11:48 - Verified Purchase by TrustPilot
Reference : 1D25