1. Home
  2. Office Supplies
  3. Packaging, Mailing & Warehouse
  4. Envelopes & Mailing Bags
  5. Plain Envelopes

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
Grid List

Filters(0)

Clear all

Filters(0)

Clear all
We found 21 products
1 - 21 of 21 products
|

Blake PurelyEveryday Peel & Seal Envelopes 100gsm DL White (50 Pack) 23882/50PR

Blake PurelyEveryday Peel Seal Envelopes 100gsm DL White 50 Pack 23882 50PR 434293 F
50
Pack
  • Pack Size: 50 Envelopes
  • Closure Type: Peel & Seal
  • Paper Weight: 100gsm for durability
  • Envelope Size: Dl
£3.54
£2.95 ex. VAT
£2.95
£3.54 inc. VAT
(1)
£3.54
£2.95 ex. VAT
£2.95
£3.54 inc. VAT
(1)

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Blake PurelyEveryday Peel & Seal White Envelopes 100gsm C5 White (100 Pack) 23893/100PR

Blake PurelyEveryday Peel Seal White Envelopes 100gsm C5 White 100 Pack 23893 100PR 752568 F
100
Pack
  • Size: C5
  • Quantity: 100 Envelopes
  • Closure: Peel & Seal - no licking needed!
  • Paper Weight: 100gsm for a professional feel
£8.77
£7.31 ex. VAT
£7.31
£8.77 inc. VAT
£8.77
£7.31 ex. VAT
£7.31
£8.77 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

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 tomorrow

Order now for dispatch tomorrow

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)

Order now for dispatch tomorrow

Order now for dispatch tomorrow

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

Order now for dispatch tomorrow

Order now for dispatch tomorrow

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 tomorrow

Order now for dispatch tomorrow

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 tomorrow

Order now for dispatch tomorrow

5 Star Office Envelopes Pocket Peel and Seal 100gsm C4 White (250 Pack) 906632

5 Star Office Envelopes Pocket Peel and Seal 100gsm C4 White 250 Pack 906632 118079 F
250
Pack
  • Size: C4 (324x229mm) - Ideal for standard documents.
  • Peel and Seal Closure - Quick, convenient and hygienic.
  • Pocket Opening - Easy document insertion/removal.
  • Pack of 250 Envelopes - Reliable 100gsm paper.
£25.44
£21.20 ex. VAT
£21.20
£25.44 inc. VAT
£25.44
£21.20 ex. VAT
£21.20
£25.44 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

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 tomorrow

Order now for dispatch tomorrow

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 tomorrow

Order now for dispatch tomorrow

Q-Connect Envelopes Self Seal 100gsm C4 White (250 Pack) KF3458

Q Connect Envelopes Self Seal 100gsm C4 White 250 Pack KF3458 105110 F
250
Pack
  • Size: C4 - Perfect for A4 documents
  • Paper Weight: 100gsm - Quality white paper construction
  • Pack Quantity: 250 envelopes per pack
  • Convenient Closure: Features a self-seal flap for easy and secure mailing
£17.26
£14.38 ex. VAT
£14.38
£17.26 inc. VAT
£17.26
£14.38 ex. VAT
£14.38
£17.26 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

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 tomorrow

Order now for dispatch tomorrow

Q-Connect Envelopes Pocket Plain Peel and Seal 100gsm C4 White (250 Pack) KF03291

Q Connect Envelopes Pocket Plain Peel and Seal 100gsm C4 White 250 Pack KF03291 280222 F
250
Pack
  • Size: C4 (324 x 229mm) - Designed for A4 paper.
  • Quantity: Pack of 250 white envelopes.
  • Closure: Features a convenient peel and seal for a secure closure.
  • Paper Weight: Made with 100gsm paper for quality and durability.
£23.74
£19.78 ex. VAT
£19.78
£23.74 inc. VAT
£23.74
£19.78 ex. VAT
£19.78
£23.74 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

5 Star Value Envelope Pocket Self Seal 100gsm C4 White (250 Pack) 553266

5 Star Value Envelope Pocket Self Seal 100gsm C4 White 250 Pack 553266 889029 F
250
Pack
  • Pack Size: 250 high-quality envelopes
  • Size: C4 - Ideal for A4 documents folded in three
  • Closure: Reliable self-seal for quick fastening
  • Paper Weight: 100gsm for a professional feel
£18.82
£15.68 ex. VAT
£15.68
£18.82 inc. VAT
£18.82
£15.68 ex. VAT
£15.68
£18.82 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Value Evolve Envelopes Recycled Pocket Self Seal 100gsm C4 White (250 Pack) RD7891

Value Evolve Envelopes Recycled Pocket Self Seal 100gsm C4 White 250 Pack RD7891 181440 F
250
Pack
  • Eco-Friendly: Made from 100% recycled 100gsm paper.
  • Size & Format: C4 size, designed for A4 documents.
  • Convenient Closure: Features a quick and easy self-seal closure.
  • Pack Quantity: Includes 250 white envelopes per pack.
£36.52
£30.43 ex. VAT
£30.43
£36.52 inc. VAT
£36.52
£30.43 ex. VAT
£30.43
£36.52 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Q-Connect Envelopes Wallet Self Seal 100gsm DL White (1000 Pack) KF3514

Q Connect Envelopes Wallet Self Seal 100gsm DL White 1000 Pack KF3514 119404 F
1000
Pack
  • Pack of 1000: Contains 1000 white wallet envelopes.
  • DL Size: Suitable for A4/A5 folded sheets.
  • 100gsm Paper: Crafted from quality 100gsm white paper.
  • Self-Seal Closure: Features a convenient and secure self-seal.
£26.10
£21.75 ex. VAT
£21.75
£26.10 inc. VAT
£26.10
£21.75 ex. VAT
£21.75
£26.10 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

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 tomorrow

Order now for dispatch tomorrow

Q-Connect Envelope Pocket Self Seal 100gsm 406x305mm Manilla (250 Pack) KF3536

Q Connect Envelope Pocket Self Seal 100gsm 406x305mm Manilla 250 Pack KF3536 195478 F
250
Pack
  • Size: 406x305mm - Ideal for A4 documents.
  • Self-Seal: Quick and easy closure – no licking needed!
  • Durable: Made from quality 100gsm paper for reliable protection.
  • Pack of 250: Perfect for businesses and home organisation.
£47.70
£39.75 ex. VAT
£39.75
£47.70 inc. VAT
£47.70
£39.75 ex. VAT
£39.75
£47.70 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

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 tomorrow

Order now for dispatch tomorrow

Kraft Mailing Bag 100mm Gusset 100gsm 580x465mm Manilla (50 Pack) KMB580

Kraft Mailing Bag 100mm Gusset 100gsm 580x465mm Manilla 50 Pack KMB580 786652 F
50
Pack
  • Eco-Friendly: Made from 100% recyclable, compostable & biodegradable paper.
  • Dimensions: 580x465x100mm with a 100mm lip.
  • UK Made: Manufactured in the UK for reduced carbon footprint.
  • Reusable & Convenient: Features twin peel and seal strips for easy reuse & returns.
£32.39
£26.99 ex. VAT
£26.99
£32.39 inc. VAT
£32.39
£26.99 ex. VAT
£26.99
£32.39 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Kraft Mailing Bag 100mm Gusset 100gsm 415x495mm Manilla (50 Pack) KMB415

Kraft Mailing Bag 100mm Gusset 100gsm 415x495mm Manilla 50 Pack KMB415 786651 F
50
Pack
  • Eco-Friendly: Made from 100% recyclable, compostable & biodegradable paper.
  • Expanding Gusset: Accommodates varying contents with extra space.
  • Reusable Design: Twin peel & seal strips enable easy re-sealing & returns.
  • UK Manufactured: Robust and lightweight alternative to cardboard boxes.
£26.61
£22.17 ex. VAT
£22.17
£26.61 inc. VAT
£26.61
£22.17 ex. VAT
£22.17
£26.61 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?