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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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We found 34 products
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Q-Connect Envelopes Pocket Self Seal 90gsm C5 White (500 Pack) KF3469

Q Connect Envelopes Pocket Self Seal 90gsm C5 White 500 Pack KF3469 106530 F
500
Pack
  • Pack Size: 500 envelopes
  • Paper Weight: 90gsm white paper
  • Size: C5, fits A4 folded or A5 unfolded
  • Closure Type: Self-Seal for secure mailing
£20.65
£17.21 ex. VAT
£17.21
£20.65 inc. VAT
£20.65
£17.21 ex. VAT
£17.21
£20.65 inc. VAT

Order now for dispatch today

Order now for dispatch today

5 Star Office Envelopes Wallet Peel and Seal 100gsm DL White (500 Pack) 906594

5 Star Office Envelopes Wallet Peel and Seal 100gsm DL White 500 Pack 906594 104769 F
500
Pack
  • Size: DL (220x110mm) - Ideal for standard documents
  • Quantity: 500 envelopes per pack – a long-lasting supply
  • Peel and Seal Closure: Saves time and ensures a secure seal
  • Wallet Opening: Allows easy access to contents
£11.82
£9.85 ex. VAT
£9.85
£11.82 inc. VAT
£11.82
£9.85 ex. VAT
£9.85
£11.82 inc. VAT

Order now for dispatch today

Order now for dispatch today

5 Star Office Envelopes Pocket Peel/Seal 100gsm C5 White (500 Pack) 906616

5 Star Office Envelopes Pocket Peel Seal 100gsm C5 White 500 Pack 906616 160514 F
500
Pack
  • Size: C5 (229x162mm) for standard mailings.
  • Peel & Seal Closure: Quick and effortless fastening.
  • Pocket Opening: Easy insertion and removal of contents.
  • Pack of 500: Ideal for busy offices and frequent use.
£15.70
£13.08 ex. VAT
£13.08
£15.70 inc. VAT
(1)
£15.70
£13.08 ex. VAT
£13.08
£15.70 inc. VAT
(1)

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Order now for dispatch today

Value Envelope Self Seal 90gsm C5 White (500 Pack) WX3469

Value Envelope Self Seal 90gsm C5 White 500 Pack WX3469 369641 F
500
Pack
  • Size: C5 envelopes – ideal for standard correspondence.
  • Paper Quality: Made from 90gsm paper for a crisp, clean finish.
  • Convenient Closure: Features a reliable self-seal for secure mailing.
  • Pack Size: Includes 500 envelopes for exceptional value.
£22.42
£18.68 ex. VAT
£18.68
£22.42 inc. VAT
£22.42
£18.68 ex. VAT
£18.68
£22.42 inc. VAT

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Order now for dispatch today

Q-Connect Envelopes Plain Wallet Peel and Seal 100gsm DL White (500 Pack) KF02951

Q Connect Envelopes Plain Wallet Peel and Seal 100gsm DL White 500 Pack KF02951 280226 F
500
Pack
  • 500 pack of plain white wallet envelopes
  • Made from quality 100gsm paper
  • Secure peel and seal closure – no licking!
  • Accommodates A4/A5 sheets folded
£18.59
£15.49 ex. VAT
£15.49
£18.59 inc. VAT
£18.59
£15.49 ex. VAT
£15.49
£18.59 inc. VAT

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Order now for dispatch today

5 Star Value Envelope Pocket Self Seal 100gsm C5 White (500 Pack) 553241

5 Star Value Envelope Pocket Self Seal 100gsm C5 White 500 Pack 553241 889366 F
500
Pack
  • Size: C5
  • Quantity: 500 envelopes per pack
  • Convenient: Self-seal closure for easy use
  • Easy Access: Pocket opening design
£14.31
£11.92 ex. VAT
£11.92
£14.31 inc. VAT
£14.31
£11.92 ex. VAT
£11.92
£14.31 inc. VAT

Order now for dispatch today

Order now for dispatch today

5 Star Value Envelope Pocket Self Seal 90gsm C5 White (500 Pack) 638574

5 Star Value Envelope Pocket Self Seal 90gsm C5 White 500 Pack 638574 889015 F
500
Pack
  • Pack Size: 500 envelopes
  • Envelope Size: C5
  • Closure Type: Self Seal
  • Opening: Pocket (opens on short side)
£14.69
£12.24 ex. VAT
£12.24
£14.69 inc. VAT
£14.69
£12.24 ex. VAT
£12.24
£14.69 inc. VAT

Order now for dispatch today

Order now for dispatch today

Value Envelope Self Seal 75gsm C5 Manilla (500 Pack) WX3516

Value Envelope Self Seal 75gsm C5 Manilla 500 Pack WX3516 242498 F
500
Pack
  • Pack Size: 500 self-seal manilla envelopes
  • Envelope Size: C5 – fits A5 & folded A4
  • Material: Durable 75gsm Manilla
  • Closure Type: Convenient Self-Seal – no licking needed!
£19.97
£16.64 ex. VAT
£16.64
£19.97 inc. VAT
£19.97
£16.64 ex. VAT
£16.64
£19.97 inc. VAT

Order now for dispatch today

Order now for dispatch today

Q-Connect Envelopes Pocket Self Seal 100gsm C5 White (500 Pack) KF97367

Q Connect Envelopes Pocket Self Seal 100gsm C5 White 500 Pack KF97367 147783 F
500
Pack
  • Pack Size: 500 envelopes per pack
  • Paper Quality: Made from 100gsm white paper
  • Size Compatibility: Fits A4 (folded) or A5 (unfolded) sheets
  • Closure Type: Features a convenient self-seal closure
£19.37
£16.14 ex. VAT
£16.14
£19.37 inc. VAT
£19.37
£16.14 ex. VAT
£16.14
£19.37 inc. VAT

Order now for dispatch today

Order now for dispatch today

Q-Connect Envelopes Pocket Peel and Seal 100gsm C5 White (500 Pack) KF03289

Q Connect Envelopes Pocket Peel and Seal 100gsm C5 White 500 Pack KF03289 280224 F
500
Pack
  • Bulk Pack: Contains 500 white envelopes for ample supply.
  • Secure Closure: Features a convenient peel and seal for a tidy, secure seal.
  • Paper Weight: Crafted from quality 100gsm paper for a professional finish.
  • Sheet Compatibility: Suitable for A4 (folded) or A5 (unfolded) sheets.
£26.27
£21.89 ex. VAT
£21.89
£26.27 inc. VAT
£26.27
£21.89 ex. VAT
£21.89
£26.27 inc. VAT

Order now for dispatch today

Order now for dispatch today

Q-Connect Envelopes Recycled Self Seal 100gsm DL White (500 Pack) KF3504

Q Connect Envelopes Recycled Self Seal 100gsm DL White 500 Pack KF3504 107322 F
500
Pack
  • Pack of 500: Contains 500 white, self-seal wallet envelopes
  • Eco-Friendly: Made from 100% recycled 100gsm paper
  • DL Size: Suitable for A4/A5 sheets folded appropriately
  • Self-Seal: Convenient closure for secure and efficient mailing
£21.00
£17.50 ex. VAT
£17.50
£21.00 inc. VAT
£21.00
£17.50 ex. VAT
£17.50
£21.00 inc. VAT

Order now for dispatch today

Order now for dispatch today

5 Star Office Envelopes Pocket Self Seal 90gsm C5 Manilla (500 Pack) J90021

5 Star Office Envelopes Pocket Self Seal 90gsm C5 Manilla 500 Pack J90021 133559 F
500
Pack
  • Pack Size: 500 manilla envelopes
  • Size & Type: C5 (229x162mm) with pocket opening
  • Convenient Closure: Features a reliable self-seal closure
  • Eco-Friendly: Made from 100% recycled materials
£13.21
£11.01 ex. VAT
£11.01
£13.21 inc. VAT
£13.21
£11.01 ex. VAT
£11.01
£13.21 inc. VAT

Order now for dispatch today

Order now for dispatch today

5 Star Value Envelope Pocket Self Seal 80gsm C5 Manilla (500 Pack) 638531

5 Star Value Envelope Pocket Self Seal 80gsm C5 Manilla 500 Pack 638531 889369 F
500
Pack
  • Size: C5
  • Quantity: 500 envelopes per pack
  • Self-seal closure for easy mailing
  • Pocket opening on the shorter side
£12.43
£10.36 ex. VAT
£10.36
£12.43 inc. VAT
£12.43
£10.36 ex. VAT
£10.36
£12.43 inc. VAT

Order now for dispatch today

Order now for dispatch today

Q-Connect Envelopes Pocket Self Seal 100gsm DL White (500 Pack) KF3440

Q Connect Envelopes Pocket Self Seal 100gsm DL White 500 Pack KF3440 174603 F
500
Pack
  • Suitable for A4/A5 sheet sizes
  • Pack of 500 self-seal envelopes
  • Made from 100gsm quality paper
  • Secure closure for reliable mailing
£14.99
£12.49 ex. VAT
£12.49
£14.99 inc. VAT
£14.99
£12.49 ex. VAT
£12.49
£14.99 inc. VAT

Order now for dispatch today

Order now for dispatch today

Q-Connect Machine Envelope Gummed 90gsm 162x238mm White (500 Pack) KF02897

Q Connect Machine Envelope Gummed 90gsm 162x238mm White 500 Pack KF02897 141752 F
500
Pack
  • Suitable for use in mailing machines
  • Contains 500 white, gummed envelopes
  • Oversized C5 size: 162 x 238mm
  • Strong 90gsm paper for reliable use
£25.56
£21.30 ex. VAT
£21.30
£25.56 inc. VAT
£25.56
£21.30 ex. VAT
£21.30
£25.56 inc. VAT

Order now for dispatch today

Order now for dispatch today

Plus Fabric Envelope Wallet Self Seal 120gsm C6 White (500 Pack) F23470

Plus Fabric Envelope Wallet Self Seal 120gsm C6 White 500 Pack F23470 118888 F
500
Pack
  • Pack of 500: Contains 500 bright white C6 envelopes.
  • Secure & Confidential: Opaque blue interior for added privacy.
  • Durable Quality: Crafted from 120gsm paper for a premium feel.
  • Easy to Use: Features a convenient self-seal closure.
£60.66
£50.55 ex. VAT
£50.55
£60.66 inc. VAT
£60.66
£50.55 ex. VAT
£50.55
£60.66 inc. VAT

Order now for dispatch today

Order now for dispatch today

Q-Connect Envelopes Pocket Self Seal 90gsm C5 Manilla (500 Pack) KF3441

Q Connect Envelopes Pocket Self Seal 90gsm C5 Manilla 500 Pack KF3441 109720 F
500
Pack
  • Pack Size: 500 manilla envelopes
  • Size: C5, fits A4 folded in thirds or A5 unfolded
  • Paper Weight: 90gsm for reliable use
  • Closure Type: Convenient self-seal closure
£21.55
£17.96 ex. VAT
£17.96
£21.55 inc. VAT
£21.55
£17.96 ex. VAT
£17.96
£21.55 inc. VAT

Order now for dispatch today

Order now for dispatch today

Q-Connect Envelopes Pocket Self Seal 80gsm C5 Manilla (500 Pack) KF3516

Q Connect Envelopes Pocket Self Seal 80gsm C5 Manilla 500 Pack KF3516 122157 F
500
Pack
  • Pack Size: 500 envelopes per pack
  • Size & Compatibility: C5 size, fits A4 folded or A5 unfolded
  • Material: Durable 80gsm paper
  • Convenience: Features a self-seal closure for easy use
£19.32
£16.10 ex. VAT
£16.10
£19.32 inc. VAT
£19.32
£16.10 ex. VAT
£16.10
£19.32 inc. VAT

Order now for dispatch today

Order now for dispatch today

Q-Connect Envelopes Pocket Gummed 70gsm C5 Manilla (500 Pack) KF3426

Q Connect Envelopes Pocket Gummed 70gsm C5 Manilla 500 Pack KF3426 123286 F
500
Pack
  • Size: C5
  • Quantity: 500
  • Paper Weight: 70gsm
  • Fits: A4 folded or A5 unfolded
£19.78
£16.48 ex. VAT
£16.48
£19.78 inc. VAT
£19.78
£16.48 ex. VAT
£16.48
£19.78 inc. VAT

Order now for dispatch today

Order now for dispatch today

Plus Fabric Envelopes Peel and Seal 120gsm C5 White (500 Pack) B26139

Plus Fabric Envelopes Peel and Seal 120gsm C5 White 500 Pack B26139 115743 F
500
Pack
  • Pack of 500 C5 envelopes
  • Suitable for A5 & folded A4 documents
  • Durable 120gsm paper with peel & seal closure
  • Features an integrated tear strip for easy opening
£89.24
£74.37 ex. VAT
£74.37
£89.24 inc. VAT
£89.24
£74.37 ex. VAT
£74.37
£89.24 inc. VAT

Order now for dispatch today

Order now for dispatch today

Basildon Bond Envelopes Wallet Peel and Seal 120gsm DL White (500 Pack) C80116

Basildon Bond Envelopes Wallet Peel and Seal 120gsm DL White 500 Pack C80116 105220 F
500
Pack
  • 500 Envelopes per Pack - Ideal for frequent mailing
  • 100% Recycled Paper - Environmentally conscious 120gsm material
  • DL Size - Fits A5 or folded A4 sheets
  • Peel and Seal Closure - Secure, professional and time-saving
£42.37
£35.31 ex. VAT
£35.31
£42.37 inc. VAT
£42.37
£35.31 ex. VAT
£35.31
£42.37 inc. VAT

Order now for dispatch today

Order now for dispatch today

County Stationery Peel and Seal Envelopes 80gsm C5 White (250 Pack) C513

County Stationery Peel and Seal Envelopes 80gsm C5 White 250 Pack C513 523200 F
500
Pack
  • Size: C5 (229 x 162mm) - Ideal for standard correspondence.
  • Quantity: 500 envelopes (20 packs of 25) – A generous supply.
  • Convenient Closure: Peel and seal for quick and easy use.
  • Quality Paper: Crafted from 80gsm paper for a professional feel.
£34.10
£28.42 ex. VAT
£28.42
£34.10 inc. VAT
£34.10
£28.42 ex. VAT
£28.42
£34.10 inc. VAT

Order now for dispatch today

Order now for dispatch today

Plus Fabric Envelopes Wallet Peel and Seal 120gsm DL White (500 Pack)E27370

Plus Fabric Envelopes Wallet Peel and Seal 120gsm DL White 500 Pack E27370 127233 F
500
Pack
  • Secure & Professional: Ideal for confidential documents and professional presentations.
  • Durable Material: Crafted from robust 120gsm paper for lasting quality.
  • Convenient Closure: Features a peel and seal closure with a tear strip for easy access.
  • Versatile Size: Fits A5 sheets folded once, or A4 sheets folded twice.
£76.05
£63.37 ex. VAT
£63.37
£76.05 inc. VAT
£76.05
£63.37 ex. VAT
£63.37
£76.05 inc. VAT

Order now for dispatch today

Order now for dispatch today

Basildon Bond Pocket Envelope Plain 120gsm C5 White (500 Pack) L80118

Basildon Bond Pocket Envelope Plain 120gsm C5 White 500 Pack L80118 129113 F
500
Pack
  • 500 Pack: Contains 500 plain white C5 envelopes.
  • Eco-Friendly: Made from 100% recycled 120gsm paper.
  • Convenient Closure: Features a reliable peel and seal closure.
  • Versatile Size: Suitable for A5 or folded A4 documents.
£94.26
£78.55 ex. VAT
£78.55
£94.26 inc. VAT
£94.26
£78.55 ex. VAT
£78.55
£94.26 inc. VAT

Back ordered item -
Due back in stock on the 14th June

5 Star Office Envelopes Pocket Self Seal 90gsm C5 White (500 Pack) B90016

5 Star Office Envelopes Pocket Self Seal 90gsm C5 White 500 Pack B90016 102743 F
500
Pack
  • Size: C5 (229x162mm) - Ideal for standard office correspondence.
  • Quantity: 500 envelopes per pack - Provides a long-lasting supply.
  • Self-Seal Closure: No need for moistening or tape for quick and easy sealing.
  • Pocket Opening: Effortless document insertion and removal from the shorter side.
£26.97
£22.47 ex. VAT
£22.47
£26.97 inc. VAT
£26.97
£22.47 ex. VAT
£22.47
£26.97 inc. VAT

Order now for dispatch today

Order now for dispatch today

County Stationery Peel and Seal Envelopes 90gsm C4 White (500 Pack) C509

County Stationery Peel and Seal Envelopes 90gsm C4 White 500 Pack C509 523194 F
500
Pack
  • Pack Size: 500 envelopes (20 sets of 25)
  • Ideal For: Business mail, invoices & important documents
  • Closure Type: Self-seal adhesive for a secure finish
  • Paper Weight: Durable 90gsm paper
£64.03
£53.36 ex. VAT
£53.36
£64.03 inc. VAT
£64.03
£53.36 ex. VAT
£53.36
£64.03 inc. VAT

Order now for dispatch today

Order now for dispatch today

Blake Evolve Envelopes Recycled Self Seal 100gsm C5 White (500 Pack) RD7893

Blake Evolve Envelopes Recycled Self Seal 100gsm C5 White 500 Pack RD7893 236629 F
500
Pack
  • Eco-Friendly: Made from 100% recycled 100gsm paper.
  • Convenient Self-Seal: Eliminates the need for tape or moisture.
  • C5 Size: Fits A4 sheets folded or A5 documents.
  • Large Quantity: Pack of 500 white envelopes.
£40.16
£33.47 ex. VAT
£33.47
£40.16 inc. VAT
£40.16
£33.47 ex. VAT
£33.47
£40.16 inc. VAT

Order now for dispatch today

Order now for dispatch today

New Guardian Strong Pocket Envelopes Peel/Seal 130gsm DL Manilla (500 Pack) E26503

New Guardian Strong Pocket Envelopes Peel Seal 130gsm DL Manilla 500 Pack E26503 103498 F
500
Pack
  • 500 Premium Envelopes: Pack contains 500 manilla envelopes
  • Strong and Durable: Built to withstand tough postal handling
  • Secure Peel and Seal: Reliable closure for a professional finish
  • DL Size: Ideal for standard letters and documents
£55.48
£46.23 ex. VAT
£46.23
£55.48 inc. VAT
£55.48
£46.23 ex. VAT
£46.23
£55.48 inc. VAT

Order now for dispatch today

Order now for dispatch today

5 Star Eco Envelopes Recycled Pocket Self Seal 90gsm C5 White (500 Pack) 937912

5 Star Eco Envelopes Recycled Pocket Self Seal 90gsm C5 White 500 Pack 937912 463262 F
500
Pack
  • Eco-Friendly: Made from 100% recycled materials.
  • Convenient: Features a self-seal closure – no licking needed!
  • Size: C5 (229 x 162mm)
  • Quantity: Pack of 500 envelopes
£27.23
£22.69 ex. VAT
£22.69
£27.23 inc. VAT
£27.23
£22.69 ex. VAT
£22.69
£27.23 inc. VAT

Order now for dispatch today

Order now for dispatch today

Q-Connect Envelopes Pocket Self Seal 90gsm C5 White (500 Pack) KF02719

Q Connect Envelopes Pocket Self Seal 90gsm C5 White 500 Pack KF02719 106702 F
500
Pack
  • Pack Size: 500 envelopes (20 packs of 25)
  • Paper Quality: Made from 90gsm white paper for a professional finish
  • Size Compatibility: Fits A4 sheets folded or A5 sheets unfolded
  • Convenient Closure: Features a secure and time-saving self-seal closure
£45.21
£37.67 ex. VAT
£37.67
£45.21 inc. VAT
£45.21
£37.67 ex. VAT
£37.67
£45.21 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 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 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

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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?