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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 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

New Guardian Envelope Self Seal 130gsm C4 Manilla (250 Pack) L26303

New Guardian Envelope Self Seal 130gsm C4 Manilla 250 Pack L26303 104882 F
250
Pack
  • Size: C4 - Perfectly sized for A4 sheets.
  • Paper Weight: 130gsm - Durable and reliable protection.
  • Closure: Self-Seal – Quick and convenient for secure mailing.
  • Quantity: Pack of 250 – Ideal for office and home use.
£73.28
£61.07 ex. VAT
£61.07
£73.28 inc. VAT
£73.28
£61.07 ex. VAT
£61.07
£73.28 inc. VAT

Order now for dispatch today

Order now for dispatch today

Q-Connect Envelope Pocket Self Seal 100gsm B4 White (250 Pack) KF02896

Q Connect Envelope Pocket Self Seal 100gsm B4 White 250 Pack KF02896 101758 F
250
Pack
  • B4 Size: 353 x 250mm
  • 100gsm Paper Weight for quality feel
  • Convenient Self-Seal Closure
  • Pack of 250 White Envelopes
£48.42
£40.35 ex. VAT
£40.35
£48.42 inc. VAT
£48.42
£40.35 ex. VAT
£40.35
£48.42 inc. VAT

Order now for dispatch today

Order now for dispatch today

5 Star Office Envelopes Recycled Pocket Self Seal 90gsm 406x305mm Manilla (250 Pack) 907239

5 Star Office Envelopes Recycled Pocket Self Seal 90gsm 406x305mm Manilla 250 Pack 907239 112936 F
250
Pack
  • Pack of 250: Contains a generous 250 high-quality manilla envelopes
  • Self-Seal Closure: Features a reliable self-seal for quick and easy use
  • Recycled Material: Made with 100% recycled materials for a sustainable choice
  • Size: Measures 406 x 305mm, suitable for standard documents
£42.25
£35.21 ex. VAT
£35.21
£42.25 inc. VAT
£42.25
£35.21 ex. VAT
£35.21
£42.25 inc. VAT

Order now for dispatch today

Order now for dispatch today

Plus Fabric Envelopes Wallet Self Seal 120gsm DL White (500 Pack) H25470

Plus Fabric Envelopes Wallet Self Seal 120gsm DL White 500 Pack H25470 107693 F
500
Pack
  • Secure & Professional: Crafted with an opaque blue interior for confidential mailing.
  • Durable Quality: Made from strong 120gsm paper for reliable protection.
  • Convenient Self-Seal: Saves time with a quick and easy closure.
  • Versatile DL Size: Fits A5 sheets folded once, or A4 sheets folded twice.
£69.54
£57.95 ex. VAT
£57.95
£69.54 inc. VAT
£69.54
£57.95 ex. VAT
£57.95
£69.54 inc. VAT

Order now for dispatch today

Order now for dispatch today

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 today

Order now for dispatch today

Q-Connect Envelopes Plain Wallet Self Seal 80gsm DL White (1000 Pack) KF02712

Q Connect Envelopes Plain Wallet Self Seal 80gsm DL White 1000 Pack KF02712 131505 F
1000
Pack
  • Pack of 1000 white, self-seal DL envelopes
  • Fits DL sized mail (A4 folded twice or A5 folded once)
  • Supplied in packs of 50 for easy distribution
  • 80gsm paper with a clean, professional white finish
£61.49
£51.24 ex. VAT
£51.24
£61.49 inc. VAT
£61.49
£51.24 ex. VAT
£51.24
£61.49 inc. VAT

Order now for dispatch today

Order now for dispatch today

Plus Fabric Envelopes Self Seal 120gsm C5 White (500 Pack) D26170

Plus Fabric Envelopes Self Seal 120gsm C5 White 500 Pack D26170 132981 F
500
Pack
  • Pack of 500 self-seal C5 envelopes
  • Made from durable 120gsm bright white paper
  • Suitable for A5 & folded A4 documents
  • Ideal for both business & personal mail
£73.82
£61.52 ex. VAT
£61.52
£73.82 inc. VAT
£73.82
£61.52 ex. VAT
£61.52
£73.82 inc. VAT

Order now for dispatch today

Order now for dispatch today

CTS Envelope Plain Non Window 80gsm DL Manilla (1000 Pack) DL801000MP

CTS Envelope Plain Non Window 80gsm DL Manilla 1000 Pack DL801000MP 809035 F
1000
Pack
  • Size: 110x220mm (DL) - Fits tri-folded A4 sheets.
  • Self-Seal: Convenient self-seal adhesive flap – no licking needed.
  • Quantity: Pack of 250 high-quality Manilla envelopes.
  • Paper Weight: Durable 80gsm paper for a professional finish.
£21.33
£17.77 ex. VAT
£17.77
£21.33 inc. VAT
£21.33
£17.77 ex. VAT
£17.77
£21.33 inc. VAT

Order now for dispatch today

Order now for dispatch today

CTS Envelope Plain Non Window 80gsm C5 Manilla (500 Pack) C580500MP

CTS Envelope Plain Non Window 80gsm C5 Manilla 500 Pack C580500MP 809033 F
500
Pack
  • Pack Size: 500 high-quality C5 manilla envelopes
  • Convenient Closure: Features a quick and easy self-seal adhesive flap
  • Durable Material: Crafted from 80gsm manilla paper for reliable postage
  • Accommodates A5: Designed to comfortably fit A5 sized documents
£16.22
£13.52 ex. VAT
£13.52
£16.22 inc. VAT
£16.22
£13.52 ex. VAT
£13.52
£16.22 inc. VAT

Order now for dispatch today

Order now for dispatch today

5 Star Eco Envelopes Wallet Recycled Self Seal 90gsm DL White (500 Pack) 940398

5 Star Eco Envelopes Wallet Recycled Self Seal 90gsm DL White 500 Pack 940398 477450 F
500
Pack

  • 500 self-seal envelopes per pack – perfect for daily use.

  • Made from 100% recycled materials for environmental sustainability.

  • DL size (220x110mm) and 90gsm – suitable for letters and documents.

  • Features a wallet opening and convenient self-seal closure for easy use.

This item is out of stock

5 Star Eco Envelopes Wallet Recycled Self Seal 90gsm DL White (500 Pack) 940398

Please enter your email address below and we will contact you as soon as this item becomes available. Your email will not be used for anything else.

5 Star Office Envelopes Pocket Self Seal 90gsm C5 White (25 Pack) 934754

5 Star Office Envelopes Pocket Self Seal 90gsm C5 White 25 Pack 934754 409082 F
25
Pack
  • Pack Size: 25 C5 envelopes
  • Self-Seal Closure: No licking needed for easy sealing
  • Dimensions: 229x162mm (C5 size)
  • Paper Weight: 90gsm for quality and durability
This item is out of stock

5 Star Office Envelopes Pocket Self Seal 90gsm C5 White (25 Pack) 934754

Please enter your email address below and we will contact you as soon as this item becomes available. Your email will not be used for anything else.

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?