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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 84 products
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Blake PurelyEveryday Self Seal Envelopes 90gsm DL White (50 Pack) 13882/50PR

Blake PurelyEveryday Self Seal Envelopes 90gsm DL White 50 Pack 13882 50PR 434540 F
50
Pack
  • Size: Dl
  • Quantity: 50 Envelopes
  • Self-Seal: No moisture needed for closure
  • Paper Weight: 90gsm for quality feel
£2.75
£2.29 ex. VAT
£2.29
£2.75 inc. VAT
(1)
£2.75
£2.29 ex. VAT
£2.29
£2.75 inc. VAT
(1)

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Order now for dispatch today

Q-Connect Envelope Pocket Self Seal 90gsm C4 White (75 Pack) KF07560

Q Connect Envelope Pocket Self Seal 90gsm C4 White 75 Pack KF07560 610342 F
75
Pack
  • Suitable for A4 documents
  • Secure self-seal closure
  • Made from 90gsm white paper
  • Pack of 75 envelopes
£8.16
£6.80 ex. VAT
£6.80
£8.16 inc. VAT
£8.16
£6.80 ex. VAT
£6.80
£8.16 inc. VAT

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Order now for dispatch today

Q-Connect Envelope Pocket Self Seal 90gsm C5 White (150 Pack) KF07558

Q Connect Envelope Pocket Self Seal 90gsm C5 White 150 Pack KF07558 610340 F
150
Pack
  • Size: C5 (162 x 299mm)
  • Paper Weight: 90gsm paper for quality feel
  • Closure: Convenient self-seal – no licking needed!
  • Pack Quantity: 150 envelopes per pack
£8.92
£7.43 ex. VAT
£7.43
£8.92 inc. VAT
£8.92
£7.43 ex. VAT
£7.43
£8.92 inc. VAT

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Order now for dispatch today

5 Star Office Envelopes Plain Wallet Self Seal 80gsm DL White (25 Pack) FS600371

5 Star Office Envelopes Plain Wallet Self Seal 80gsm DL White 25 Pack FS600371 912094 F
25
Pack
  • Pack of 25 plain white wallet envelopes
  • Suitable for DL size mail & folded A4/A5 sheets
  • 80gsm paper for reliable performance
  • Features a simple and secure self-seal closure
£1.63
£1.36 ex. VAT
£1.36
£1.63 inc. VAT
(1)
£1.63
£1.36 ex. VAT
£1.36
£1.63 inc. VAT
(1)

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Order now for dispatch today

Blake PurelyEveryday Self Seal Envelopes 80gsm DL White (50 Pack) 12882/50PR

Blake PurelyEveryday Self Seal Envelopes 80gsm DL White 50 Pack 12882 50PR 434301 F
50
Pack
  • Pack Size: 50 envelopes
  • Size & Weight: DL, 80gsm paper
  • Convenient: Self-seal closure - no moisture needed
  • Colour: Classic white for a professional finish
£2.47
£2.06 ex. VAT
£2.06
£2.47 inc. VAT
£2.47
£2.06 ex. VAT
£2.06
£2.47 inc. VAT

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Order now for dispatch today

Value Envelope Self Seal 80gsm DL White (1000 Pack) WX3454

Value Envelope Self Seal 80gsm DL White 1000 Pack WX3454 193502 F
1000
Pack
  • Pack of 1000 white DL envelopes
  • Suitable for A5 & A4 documents
  • 80gsm quality paper for a professional finish
  • Self-seal flap – no moistening needed
£23.57
£19.64 ex. VAT
£19.64
£23.57 inc. VAT
£23.57
£19.64 ex. VAT
£19.64
£23.57 inc. VAT

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Order now for dispatch today

Blake PurelyEveryday Self Seal Envelopes 90gsm C4 White (50 Pack) 12891/50PR

Blake PurelyEveryday Self Seal Envelopes 90gsm C4 White 50 Pack 12891 50PR 600528 F
50
Pack

  • Pack Size: Contains 50 high-quality, self-seal envelopes.

  • Convenience: Self-seal design eliminates licking or moistening.

  • Size & Use: C4 size, ideal for documents and letters.

  • Durability: Made with 90gsm paper for a premium feel and reliability.

£6.33
£5.27 ex. VAT
£5.27
£6.33 inc. VAT
£6.33
£5.27 ex. VAT
£5.27
£6.33 inc. VAT

Order now for dispatch today

Order now for dispatch today

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

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Order now for dispatch today

Q-Connect Envelopes Self Seal 90gsm C4 White (250 Pack) KF3499

Q Connect Envelopes Self Seal 90gsm C4 White 250 Pack KF3499 104714 F
250
Pack
  • Size: C4
  • Paper Weight: 90gsm white paper
  • Pack Quantity: 250 envelopes
  • Closure: Convenient self-seal flap
£18.79
£15.66 ex. VAT
£15.66
£18.79 inc. VAT
£18.79
£15.66 ex. VAT
£15.66
£18.79 inc. VAT

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Order now for dispatch today

5 Star Value Envelopes Self Seal 90gsm DL White (1000 Pack) 88469

5 Star Value Envelopes Self Seal 90gsm DL White 1000 Pack 88469 900346 F
1000
Pack
  • Pack of 1000 self-seal DL envelopes
  • Made from 90gsm paper for reliable use
  • Standard DL size - ideal for letters
  • Self-seal closure for a secure and tidy finish
£27.69
£23.07 ex. VAT
£23.07
£27.69 inc. VAT
£27.69
£23.07 ex. VAT
£23.07
£27.69 inc. VAT

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Order now for dispatch today

Blake PurelyEveryday Envelopes Self Seal 90gsm C6 White (50 Pack) 2602/50PR

Blake PurelyEveryday Envelopes Self Seal 90gsm C6 White 50 Pack 2602 50PR 434537 F
50
Pack
  • Pack Size: 50 Envelopes
  • Envelope Size: C6
  • Paper Weight: 90gsm for a professional feel
  • Convenient Closure: Self-seal – no moistening needed
£2.64
£2.20 ex. VAT
£2.20
£2.64 inc. VAT
£2.64
£2.20 ex. VAT
£2.20
£2.64 inc. VAT

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Order now for dispatch today

Q-Connect Envelope Wallet Self Seal 80gsm DL White (250 Pack) KF07556

Q Connect Envelope Wallet Self Seal 80gsm DL White 250 Pack KF07556 610338 F
250
Pack
  • Size: DL - Fits standard A4/A5 folded documents.
  • 250 Pack: Large quantity for frequent use.
  • 80gsm White Paper: Professional quality and finish.
  • Self-Seal Closure: Secure, tamper-evident & saves time.
£8.98
£7.48 ex. VAT
£7.48
£8.98 inc. VAT
£8.98
£7.48 ex. VAT
£7.48
£8.98 inc. VAT

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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

5 Star Office Envelopes Wallet Self Seal 80gsm DL White (50 Pack) 934740

5 Star Office Envelopes Wallet Self Seal 80gsm DL White 50 Pack 934740 409091 F
50
Pack
  • Pack Size: 50 high-quality self-seal envelopes
  • Size: DL (220x110mm)
  • Opening Style: Wallet opening for easy access
  • Paper Weight: 80gsm
£2.93
£2.44 ex. VAT
£2.44
£2.93 inc. VAT
£2.93
£2.44 ex. VAT
£2.44
£2.93 inc. VAT

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Order now for dispatch today

5 Star Office Envelopes Wallet Self Seal 80gsm DL White (1000 Pack) B90024

5 Star Office Envelopes Wallet Self Seal 80gsm DL White 1000 Pack B90024 112729 F
1000
Pack
  • Pack Size: 1000 white, DL size (220x110mm) envelopes
  • Self-Seal Closure: Saves time and effort with a reliable closure.
  • Wallet Opening: Opens along the longer side for easy access.
  • Trusted Brand: Part of the renowned 5 Star Office range.
£18.39
£15.32 ex. VAT
£15.32
£18.39 inc. VAT
£18.39
£15.32 ex. VAT
£15.32
£18.39 inc. VAT

Order now for dispatch today

Order now for dispatch today

Value Envelopes Self Seal 90gsm C4 White (250 Pack) WX3499

Value Envelopes Self Seal 90gsm C4 White 250 Pack WX3499 199658 F
250
Pack
  • Pack Size: 250 white C4 envelopes
  • Self-Seal Closure: No licking needed for secure mailing
  • Paper Weight: Made from durable 90gsm paper
  • Ideal For: Professional business correspondence & invoices
£21.09
£17.57 ex. VAT
£17.57
£21.09 inc. VAT
(1)
£21.09
£17.57 ex. VAT
£17.57
£21.09 inc. VAT
(1)

Order now for dispatch today

Order now for dispatch today

Q-Connect Envelopes Plain Wallet Self Seal 80gsm DL White (1000 Pack) KF3454

Q Connect Envelopes Plain Wallet Self Seal 80gsm DL White 1000 Pack KF3454 123166 F
1000
Pack
  • Pack Size: 1000 envelopes per pack
  • Paper Weight: Made from 80gsm paper for reliable use
  • Size: DL size, fits A4/A5 folded sheets
  • Closure Type: Features a convenient self-seal closure
£21.13
£17.61 ex. VAT
£17.61
£21.13 inc. VAT
£21.13
£17.61 ex. VAT
£17.61
£21.13 inc. VAT

Order now for dispatch today

Order now for dispatch today

Q-Connect Envelopes Pocket Self Seal 115gsm C5 Manilla (250 Pack) KF3442

Q Connect Envelopes Pocket Self Seal 115gsm C5 Manilla 250 Pack KF3442 106513 F
250
Pack
  • Pack Size: 250 manilla envelopes
  • Paper Weight: Durable 115gsm paper
  • Size: C5, fits A4 folded or A5 unfolded
  • Closure: Convenient self-seal for secure mailing
£13.44
£11.20 ex. VAT
£11.20
£13.44 inc. VAT
£13.44
£11.20 ex. VAT
£11.20
£13.44 inc. VAT

Order now for dispatch today

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 Office Envelopes Pocket Self Seal 90gsm C4 White (25 Pack) 934758

5 Star Office Envelopes Pocket Self Seal 90gsm C4 White 25 Pack 934758 409081 F
25
Pack
  • Size: C4 (324x229mm) - Ideal for standard documents
  • Quantity: 25 high-quality envelopes per pack
  • Self-Seal Closure: No need for moistening or tape for easy sealing
  • Pocket Opening: Allows quick and easy access to contents
£2.26
£1.88 ex. VAT
£1.88
£2.26 inc. VAT
£2.26
£1.88 ex. VAT
£1.88
£2.26 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 Wallet Self Seal 90gsm DL White (1000 Pack) KF3480

Q Connect Envelopes Wallet Self Seal 90gsm DL White 1000 Pack KF3480 101410 F
1000
Pack
  • Suitable for DL size mail (A4/A5 folded)
  • Self-seal closure for secure mailing
  • Made from high-quality 90gsm white paper
  • Pack of 1000 envelopes
£22.95
£19.12 ex. VAT
£19.12
£22.95 inc. VAT
£22.95
£19.12 ex. VAT
£19.12
£22.95 inc. VAT

Order now for dispatch today

Order now for dispatch today

Q-Connect Envelope Wallet Self Seal 90gsm C6 White (1000 Pack) KF3472

Q Connect Envelope Wallet Self Seal 90gsm C6 White 1000 Pack KF3472 126705 F
1000
Pack
  • Pack Size: 1000 self-seal envelopes
  • Document Size: Suitable for A6 or folded A5
  • Paper Weight: 90gsm white paper stock
  • Closure Type: Secure self-seal fastening
£24.48
£20.40 ex. VAT
£20.40
£24.48 inc. VAT
£24.48
£20.40 ex. VAT
£20.40
£24.48 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

5 Star Office Envelopes Recycled Wallet Self Seal Lightweight 80gsm C6 White (1000 Pack) H90019

5 Star Office Envelopes Recycled Wallet Self Seal Lightweight 80gsm C6 White 1000 Pack H90019 121386 F
1000
Pack
  • Size C6 (114x162mm) - ideal for standard correspondence.
  • Pack of 1000 - provides a large supply for office use.
  • Self-Seal & Wallet Opening - for easy and secure document handling.
  • 100% Recycled Materials - a sustainable stationery choice.
£27.61
£23.01 ex. VAT
£23.01
£27.61 inc. VAT
£27.61
£23.01 ex. VAT
£23.01
£27.61 inc. VAT

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

Q-Connect Envelopes Pocket Self Seal 80gsm C4 Manilla (250 Pack) KF3470

Q Connect Envelopes Pocket Self Seal 80gsm C4 Manilla 250 Pack KF3470 139796 F
250
Pack
  • Contains 250 manilla envelopes
  • Ideal for A4 documents
  • Features an easy-seal, secure flap
  • Made with 85% recycled content
£17.41
£14.51 ex. VAT
£14.51
£17.41 inc. VAT
£17.41
£14.51 ex. VAT
£14.51
£17.41 inc. VAT

Order now for dispatch today

Order now for dispatch today

Q-Connect Envelopes Pocket Self Seal 90gsm C4 Manilla (250 Pack) KF3419

Q Connect Envelopes Pocket Self Seal 90gsm C4 Manilla 250 Pack KF3419 126348 F
250
Pack
  • Size: C4 - Ideal for A4 documents.
  • Quantity: 250 envelopes per pack.
  • Material: Made from 85% recycled manilla.
  • Closure: Features a convenient self-seal flap.
£18.43
£15.36 ex. VAT
£15.36
£18.43 inc. VAT
£18.43
£15.36 ex. VAT
£15.36
£18.43 inc. VAT

Order now for dispatch today

Order now for dispatch today

5 Star Office Envelopes Pocket Self Seal 115gsm C4 Manilla (250 Pack) J90013

5 Star Office Envelopes Pocket Self Seal 115gsm C4 Manilla 250 Pack J90013 130612 F
250
Pack
  • Pack Size: 250 C4 (324x229mm) envelopes
  • Convenient Closure: Features a reliable self-seal for easy use.
  • Paper Weight: Made from durable 115gsm paper.
  • Eco-Friendly: Crafted with 100% recycled content.
£17.59
£14.66 ex. VAT
£14.66
£17.59 inc. VAT
£17.59
£14.66 ex. VAT
£14.66
£17.59 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

Q-Connect Envelopes Wallet Self Seal 120gsm DL White (1000 Pack) KF97366

Q Connect Envelopes Wallet Self Seal 120gsm DL White 1000 Pack KF97366 163628 F
1000
Pack
  • Pack of 1000 self-seal DL envelopes
  • Suitable for A4/A5 sheet sizes
  • Made from durable 120gsm white paper
  • Convenient self-seal closure for easy mailing
£27.49
£22.91 ex. VAT
£22.91
£27.49 inc. VAT
£27.49
£22.91 ex. VAT
£22.91
£27.49 inc. VAT

Order now for dispatch today

Order now for dispatch today

Value Envelope Manilla Self Seal 80gsm C4 Manilla (250 Pack) WX3470

Value Envelope Manilla Self Seal 80gsm C4 Manilla 250 Pack WX3470 102795 F
250
Pack
  • C4 Size: Suitable for standard business correspondence and unfolded A4 documents.
  • Self-Seal: Features a convenient self-adhesive flap for quick, easy closure – no moisture needed.
  • Durable Quality: Crafted from high-quality 80gsm paper for a professional finish.
  • Large Pack: Contains 250 envelopes – ideal for both home and business use.
£18.54
£15.45 ex. VAT
£15.45
£18.54 inc. VAT
£18.54
£15.45 ex. VAT
£15.45
£18.54 inc. VAT

Order now for dispatch today

Order now for dispatch today

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 today

Order now for dispatch today

Q-Connect Envelope Pocket Self Seal 115gsm C3 Manilla (125 Pack) KF3408

Q Connect Envelope Pocket Self Seal 115gsm C3 Manilla 125 Pack KF3408 125942 F
125
Pack
  • Size: 457x324mm (C3) - Ideal for larger correspondence.
  • Strong & Reliable: Crafted from 115gsm paper for secure transit.
  • Self-Seal Closure: Quick and easy to use - no moisture needed.
  • Pack of 125: Perfect for both business and home use.
£27.81
£23.17 ex. VAT
£23.17
£27.81 inc. VAT
£27.81
£23.17 ex. VAT
£23.17
£27.81 inc. VAT

Order now for dispatch today

Order now for dispatch today

5 Star Value Envelope Pocket Self Seal 90gsm C4 Manilla (250 Pack) 638523

5 Star Value Envelope Pocket Self Seal 90gsm C4 Manilla 250 Pack 638523 889367 F
250
Pack
  • Pack Size: 250 manilla envelopes
  • Closure Type: Self-seal for convenience
  • Envelope Size: C4
  • Opening: Pocket access on the shorter side
£16.77
£13.97 ex. VAT
£13.97
£16.77 inc. VAT
£16.77
£13.97 ex. VAT
£13.97
£16.77 inc. VAT

Order now for dispatch today

Order now for dispatch today

Value Envelope Manilla Self Seal 115gsm C4 Manilla (250 Pack) WX3461

Value Envelope Manilla Self Seal 115gsm C4 Manilla 250 Pack WX3461 224100 F
250
Pack

  • Pack of 250 C4 Manilla Self Seal Envelopes

  • Fits unfolded A4 documents

  • Made from 115gsm heavyweight paper for a professional finish

  • Quick & easy self-adhesive flap for secure sealing

£22.43
£18.69 ex. VAT
£18.69
£22.43 inc. VAT
£22.43
£18.69 ex. VAT
£18.69
£22.43 inc. VAT

Order now for dispatch today

Order now for dispatch today

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?