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Plain Envelopes

Plain envelopes can be bought from us in a variety of colours such as white and manilla, as well as multiple sizes like C4, C5 and DL.

Plain Envelopes
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Plus Fabric Envelopes Wallet Self Seal 120gsm DL White (250 Pack) M23270

Plus Fabric Envelopes Wallet Self Seal 120gsm DL White 250 Pack M23270 121652 F
250
Pack
  • Secure & Professional: Ideal for confidential correspondence.
  • Durable 120gsm Paper: Offers reliable protection for documents.
  • Convenient Self-Seal Closure: No moisture adhesive needed.
  • Fits A5/A4 Sheets: Accommodates folded documents easily.
£36.04
£30.03 ex. VAT
£30.03
£36.04 inc. VAT
£36.04
£30.03 ex. VAT
£30.03
£36.04 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Plus Fabric Envelope Pocket Peel and Seal 120gsm C4 White (250 Pack) K26739

Plus Fabric Envelope Pocket Peel and Seal 120gsm C4 White 250 Pack K26739 122101 F
250
Pack
  • Size: C4 – fits A4 sheets
  • Material: Robust 120gsm paper for durability
  • Security: Opaque blue interior & secure peel and seal closure
  • Quantity: Pack of 250 envelopes
£104.29
£86.91 ex. VAT
£86.91
£104.29 inc. VAT
£104.29
£86.91 ex. VAT
£86.91
£104.29 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Basildon Bond Pocket Envelope 120gsm C4 White (250 Pack) M80120

Basildon Bond Pocket Envelope 120gsm C4 White 250 Pack M80120 106610 F
250
Pack

  • Pack of 250 plain white C4 envelopes

  • Suitable for A4 documents & standard business correspondence

  • Made from 120gsm 100% recycled paper

  • Features a peel and seal closure & opaque green interior

£69.07
£57.56 ex. VAT
£57.56
£69.07 inc. VAT
£69.07
£57.56 ex. VAT
£57.56
£69.07 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Blake Wallet Envelope Peel and Seal 120gsm C5 Black (250 Pack) BLK93027

Blake Wallet Envelope Peel and Seal 120gsm C5 Black 250 Pack BLK93027 453103 F
250
Pack
  • Size: C5 – fits A4 folded or A5 documents.
  • Closure: Peel and seal for secure mailing.
  • Quantity: 250 envelopes per pack.
  • Colour: Jet Black – adds a sophisticated touch.
£83.04
£69.20 ex. VAT
£69.20
£83.04 inc. VAT
£83.04
£69.20 ex. VAT
£69.20
£83.04 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Plus Fabric Envelopes Self Seal 120gsm C5 White (250 Pack) D23770

Plus Fabric Envelopes Self Seal 120gsm C5 White 250 Pack D23770 154917 F
250
Pack
  • Pack of 250 self-seal C5 envelopes
  • Suitable for A5 & folded A4 documents
  • Made from durable 120gsm bright white paper
  • Self-seal closure saves time & effort
£49.18
£40.98 ex. VAT
£40.98
£49.18 inc. VAT
£49.18
£40.98 ex. VAT
£40.98
£49.18 inc. VAT

Back ordered item -
Due back in stock on the 9th June

Bong E-Green 50mm Gusset Peel and Seal Mailer 120gsm C4 Manilla (250 Pack) 69113

Bong E Green 50mm Gusset Peel and Seal Mailer 120gsm C4 Manilla 250 Pack 69113 611751 F
250
Pack
  • Durable & Waterproof: Crafted from 120gsm Kraft paper for reliable protection.
  • Generous Gusset: Features a 50mm gusset for thicker contents.
  • Convenient Closure: Easy-peel and seal with a tamper-evident seal & return strip.
  • Pack of 250: Ideal for mailing catalogues, reports, and brochures.
£85.04
£70.87 ex. VAT
£70.87
£85.04 inc. VAT
£85.04
£70.87 ex. VAT
£70.87
£85.04 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Plus Fabric Envelope Pocket Self Seal 120gsm C4 White (250 Pack) L26370

Plus Fabric Envelope Pocket Self Seal 120gsm C4 White 250 Pack L26370 118558 F
250
Pack
  • Size: C4 – fits standard A4 sheets.
  • Closure: Self-seal for quick & easy use.
  • Quantity: 250 envelopes per pack.
  • Security: White exterior, opaque blue interior for confidentiality.
£84.19
£70.16 ex. VAT
£70.16
£84.19 inc. VAT
£84.19
£70.16 ex. VAT
£70.16
£84.19 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Blake Wallet Envelope Peel and Seal 120gsm C5 Yellow (250 Pack) BLK93019

Blake Wallet Envelope Peel and Seal 120gsm C5 Yellow 250 Pack BLK93019 453097 F
250
Pack
  • Colour: Bright Banana Yellow – makes mail stand out.
  • Size: C5 – fits A4 folded or A5 unfolded.
  • Closure: Peel and seal for quick dispatch.
  • Pack Size: 250 envelopes per pack.
£47.17
£39.31 ex. VAT
£39.31
£47.17 inc. VAT
£47.17
£39.31 ex. VAT
£39.31
£47.17 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Blake Wallet Envelope Peel and Seal 120gsm C5 Red (250 Pack) BLK93020

Blake Wallet Envelope Peel and Seal 120gsm C5 Red 250 Pack BLK93020 453098 F
250
Pack
  • Vibrant Red C5 Envelopes: Make your mail stand out.
  • Quality 120gsm Paper: Professional finish & reliable protection.
  • Peel & Seal Closure: Secure and easy to use.
  • Bulk Pack of 250: Ideal for businesses & frequent use.
£74.56
£62.13 ex. VAT
£62.13
£74.56 inc. VAT
£74.56
£62.13 ex. VAT
£62.13
£74.56 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Bong E-Green 40mm Gusset Peel and Seal Mailer 210gsm C5 Manilla (250 Pack) 69112

Bong E Green 40mm Gusset Peel and Seal Mailer 210gsm C5 Manilla 250 Pack 69112 611750 F
250
Pack
  • Pack of 250: Ideal for bulk mailing needs.
  • 40mm Gusset: Provides extra space for thicker items.
  • Waterproof & Durable: Made from 120gsm Kraft paper.
  • Peel & Seal Closure: Includes a tamper-evident seal and return strip.
£63.98
£53.32 ex. VAT
£53.32
£63.98 inc. VAT
£63.98
£53.32 ex. VAT
£53.32
£63.98 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Plain Envelopes

Find plain envelopes for your mailing and office requirements. Our extensive range includes a variety of sizes, including DL, C4, C5 and B4. Peel and seal and self seal options are also available.

We stock bulk packs to suit businesses and home offices, as well as a wide range of quantities. Choose from different paper weights and colours like white and manilla.

We have the right envelope for your letters, documents and invoices. Envelopes with recycled paper are also available here.

Find more types of envelopes in our full range.

Frequently Asked Questions

Q. Will C5 envelopes fit A4 paper?

Q. What is a windowless envelope?