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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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Value Envelope Self Seal 90gsm DL White (1000 Pack) WX3480

Value Envelope Self Seal 90gsm DL White 1000 Pack WX3480 154746 F
1000
Pack
  • Bulk Pack: Contains 1000 white DL envelopes.
  • Paper Quality: Made from 90gsm paper for durability.
  • Convenient Closure: Features a self-seal flap – no licking required!
  • Versatile Size: Designed for A5 documents or folded A4 sheets.
£27.76
£23.13 ex. VAT
£23.13
£27.76 inc. VAT
£27.76
£23.13 ex. VAT
£23.13
£27.76 inc. VAT

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Order now for dispatch tomorrow

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

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Order now for dispatch tomorrow

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

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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

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Order now for dispatch tomorrow

Q-Connect Envelopes Self Seal 90gsm C4 White (250 Pack) KF02721

Q Connect Envelopes Self Seal 90gsm C4 White 250 Pack KF02721 105706 F
250
Pack
  • Suitable for A4 documents
  • Pack of 250 self-seal envelopes
  • Made from quality 90gsm white paper
  • Easy-seal closure for quick dispatch
£32.46
£27.05 ex. VAT
£27.05
£32.46 inc. VAT
£32.46
£27.05 ex. VAT
£27.05
£32.46 inc. VAT

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Order now for dispatch tomorrow

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

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Order now for dispatch tomorrow

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

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Order now for dispatch tomorrow

Value Envelope Plain Non Window 80gsm C4 Manilla (250 Pack) C480250MP

Value Envelope Plain Non Window 80gsm C4 Manilla 250 Pack C480250MP 809031 F
250
Pack
  • Pack of 250: Contains a generous supply of high-quality C4 manilla envelopes.
  • Self-Seal Closure: Features a convenient adhesive flap for easy, no-lick sealing.
  • A4 Compatible: Comfortably fits unfolded A4 paper (324x229mm size).
  • Durable 80gsm Paper: Offers reliable protection during mailing and transit.
£14.62
£12.18 ex. VAT
£12.18
£14.62 inc. VAT
£14.62
£12.18 ex. VAT
£12.18
£14.62 inc. VAT

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Order now for dispatch tomorrow

5 Star Value Envelope Wallet Self Seal 80gsm DL White (1000 Pack) 638507

5 Star Value Envelope Wallet Self Seal 80gsm DL White 1000 Pack 638507 889013 F
1000
Pack
  • Pack Size: 1000 white envelopes per pack
  • Closure Type: Features a convenient self-seal closure
  • Opening Style: Wallet opening designed for access along the longer side
  • Paper Weight: Made from durable 80gsm paper
£18.39
£15.32 ex. VAT
£15.32
£18.39 inc. VAT
£18.39
£15.32 ex. VAT
£15.32
£18.39 inc. VAT

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Order now for dispatch tomorrow

5 Star Value Envelope Pocket Self Seal 90gsm C4 White (250 Pack) 638558

5 Star Value Envelope Pocket Self Seal 90gsm C4 White 250 Pack 638558 889016 F
250
Pack
  • Pack Size: 250 high-quality envelopes
  • Size: C4 - Ideal for A4 documents folded in three
  • Closure: Reliable self-seal for easy mailing
  • Paper Weight: 90gsm - Durable and professional feel
£20.49
£17.07 ex. VAT
£17.07
£20.49 inc. VAT
£20.49
£17.07 ex. VAT
£17.07
£20.49 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

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 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

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Order now for dispatch tomorrow

Q-Connect Envelopes Pocket Self Seal 115gsm C4 Manilla (250 Pack) KF3461

Q Connect Envelopes Pocket Self Seal 115gsm C4 Manilla 250 Pack KF3461 160611 F
250
Pack
  • Suitable for A4 documents
  • Pack of 250 manilla envelopes
  • Made with 85% recycled manilla
  • Heavyweight 115gsm paper with self-seal closure
£21.54
£17.95 ex. VAT
£17.95
£21.54 inc. VAT
£21.54
£17.95 ex. VAT
£17.95
£21.54 inc. VAT

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Order now for dispatch tomorrow

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

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Order now for dispatch tomorrow

Q-Connect Envelope Pocket Self Seal 115gsm 381x254mm Manilla (250 Pack) KF3459

Q Connect Envelope Pocket Self Seal 115gsm 381x254mm Manilla 250 Pack KF3459 151596 F
250
Pack
  • Size: 381 x 254mm
  • Paper Weight: 115gsm for reliable protection
  • Convenient: Self-seal closure for quick use
  • Eco-Friendly: Made with 75% recycled content
£22.18
£18.48 ex. VAT
£18.48
£22.18 inc. VAT
£22.18
£18.48 ex. VAT
£18.48
£22.18 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Q-Connect Envelope Pocket Self Seal 115gsm 406x305mm Manilla (250 Pack) KF3450

Q Connect Envelope Pocket Self Seal 115gsm 406x305mm Manilla 250 Pack KF3450 156398 F
250
Pack
  • Size: 406 x 305mm
  • Paper Weight: 115gsm for reliable protection
  • Closure: Convenient self-seal for quick use
  • Pack: 250 manilla envelopes, 75% recycled
£31.60
£26.33 ex. VAT
£26.33
£31.60 inc. VAT
£31.60
£26.33 ex. VAT
£26.33
£31.60 inc. VAT

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Order now for dispatch tomorrow

Q-Connect Envelope Wallet Self Seal 80gsm C6 White (1000 Pack) KF02714

Q Connect Envelope Wallet Self Seal 80gsm C6 White 1000 Pack KF02714 139147 F
1000
Pack
  • Contains 1000 self-seal envelopes for mailing and archiving
  • Holds unfolded A6 or folded A5 documents
  • Made from bright white 80gsm paper for a professional finish
  • Supplied in packs of 50 for easy distribution
£43.05
£35.87 ex. VAT
£35.87
£43.05 inc. VAT
£43.05
£35.87 ex. VAT
£35.87
£43.05 inc. VAT

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Order now for dispatch tomorrow

Q-Connect Envelope Pocket Self Seal 90gsm 381x254mm Manilla (250 Pack) KF3511

Q Connect Envelope Pocket Self Seal 90gsm 381x254mm Manilla 250 Pack KF3511 109849 F
250
Pack
  • Size: 381 x 254mm
  • Paper Weight: 90gsm for reliable performance
  • Closure: Convenient self-seal for secure mailing
  • Eco-Friendly: Made with 75% recycled content
£21.53
£17.94 ex. VAT
£17.94
£21.53 inc. VAT
£21.53
£17.94 ex. VAT
£17.94
£21.53 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Q-Connect Envelope Pocket Self Seal 90gsm 254x178mm Manilla (250 Pack) KF3445

Q Connect Envelope Pocket Self Seal 90gsm 254x178mm Manilla 250 Pack KF3445 104595 F
250
Pack
  • Size: 254 x 178mm
  • Pack of 250 manilla envelopes
  • Self-seal closure for easy use
  • Made with 75% recycled content
£19.84
£16.53 ex. VAT
£16.53
£19.84 inc. VAT
£19.84
£16.53 ex. VAT
£16.53
£19.84 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

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Order now for dispatch tomorrow

Q-Connect Envelope Pocket Self Seal 90gsm B4 Manilla (250 Pack) KF02893

Q Connect Envelope Pocket Self Seal 90gsm B4 Manilla 250 Pack KF02893 130378 F
250
Pack
  • Size: 353 x 250mm (B4)
  • Quantity: Pack of 250 envelopes
  • Paper Weight: 90gsm
  • Closure: Self-seal adhesive flap
£34.54
£28.78 ex. VAT
£28.78
£34.54 inc. VAT
£34.54
£28.78 ex. VAT
£28.78
£34.54 inc. VAT

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Order now for dispatch tomorrow

5 Star Office Envelopes Pocket Self Seal 90gsm C4 White (250 Pack) F90014

5 Star Office Envelopes Pocket Self Seal 90gsm C4 White 250 Pack F90014 156628 F
250
Pack
  • Size: C4 (324x229mm) - Ideal for standard business documents
  • Self-Seal Closure: No licking needed for quick and easy sealing
  • 90gsm Paper Weight: Durable and reliable quality paper
  • Pack of 250: Provides a large supply for extended use
£25.01
£20.84 ex. VAT
£20.84
£25.01 inc. VAT
£25.01
£20.84 ex. VAT
£20.84
£25.01 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

New Guardian Envelope Pocket Self Seal 130gsm C5 Manilla (250 Pack) D26103

New Guardian Envelope Pocket Self Seal 130gsm C5 Manilla 250 Pack D26103 139227 F
250
Pack
  • Pack Size: 250 envelopes
  • Envelope Size: C5
  • Paper Weight: 130gsm for durability
  • Closure Type: Self-seal for easy & secure use
£40.63
£33.86 ex. VAT
£33.86
£40.63 inc. VAT
£40.63
£33.86 ex. VAT
£33.86
£40.63 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

Q-Connect Envelope Pocket Self Seal 135gsm C3 Manilla (125 Pack) KF71465

Q Connect Envelope Pocket Self Seal 135gsm C3 Manilla 125 Pack KF71465 461803 F
125
Pack
  • Size: 458 x 324mm – Ideal for larger items.
  • Quantity: Pack of 125 manilla envelopes.
  • Material & Weight: Durable 135gsm manilla paper.
  • Convenient: Features a quick self-seal pocket closure & 75% recycled content.
£35.20
£29.33 ex. VAT
£29.33
£35.20 inc. VAT
£35.20
£29.33 ex. VAT
£29.33
£35.20 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Q-Connect Envelopes Pocket Self Seal 80gsm C4 Manilla (250 Pack) KF02720

Q Connect Envelopes Pocket Self Seal 80gsm C4 Manilla 250 Pack KF02720 154378 F
250
Pack
  • Contains 250 manilla C4 envelopes
  • Self-seal closure for convenience
  • Suitable for A4 documents
  • Durable 80gsm paper
£22.68
£18.90 ex. VAT
£18.90
£22.68 inc. VAT
£22.68
£18.90 ex. VAT
£18.90
£22.68 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

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 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

5 Star Office Envelopes Pocket Self Seal 90gsm C4 Manilla (250 Pack) F90022

5 Star Office Envelopes Pocket Self Seal 90gsm C4 Manilla 250 Pack F90022 105620 F
250
Pack
  • Pack Size: 250 C4 (324x229mm) manilla envelopes
  • Convenient Closure: Features a reliable self-seal for quick fastening
  • Paper Quality: Made from 90gsm paper with 100% recycled materials
  • Easy Access: Pocket opening along the shorter side for simple content retrieval
£25.93
£21.61 ex. VAT
£21.61
£25.93 inc. VAT
£25.93
£21.61 ex. VAT
£21.61
£25.93 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

5 Star Office Envelopes Recycled Pocket Self Seal 115gsm 406x305mm Manilla (250 Pack) D90023

5 Star Office Envelopes Recycled Pocket Self Seal 115gsm 406x305mm Manilla 250 Pack D90023 123891 F
250
Pack
  • Pack of 250: Contains 250 high-quality manilla envelopes.
  • Self-Seal Closure: Features a reliable self-seal for convenience.
  • Recycled Material: Made with 100% recycled materials for sustainability.
  • Size: 406 x 305mm: Ideal for standard documents and office use.
£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 tomorrow

Order now for dispatch tomorrow

5 Star Office Envelopes Recycled Pocket Self Seal 90gsm 381x254mm Manilla (250 Pack) 907220

5 Star Office Envelopes Recycled Pocket Self Seal 90gsm 381x254mm Manilla 250 Pack 907220 103014 F
250
Pack
  • Pack of 250: Contains 250 high-quality manilla envelopes
  • Self-Seal Closure: Features a reliable self-seal for convenience
  • Size: 381 x 254mm, ideal for standard documents
  • Sustainable Choice: Made with 100% recycled materials
£26.03
£21.69 ex. VAT
£21.69
£26.03 inc. VAT
£26.03
£21.69 ex. VAT
£21.69
£26.03 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

Blake Evolve Envelope Recycled Wallet Self Seal 90gsm DL White (1000 Pack) RD7882

Blake Evolve Envelope Recycled Wallet Self Seal 90gsm DL White 1000 Pack RD7882 110265 F
1000
Pack
  • Eco-Friendly: Made from 100% recycled 90gsm paper
  • Size: DL – fits A4/A5 inserts
  • Convenient: Self-seal closure for quick and secure mailing
  • Quantity: Pack of 1000 white envelopes
£52.28
£43.57 ex. VAT
£43.57
£52.28 inc. VAT
£52.28
£43.57 ex. VAT
£43.57
£52.28 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

5 Star Office Envelopes Recycled Pocket Self Seal 115gsm C3 Manilla (125 Pack) 940414

5 Star Office Envelopes Recycled Pocket Self Seal 115gsm C3 Manilla 125 Pack 940414 477454 F
125
Pack
  • Size: 457x324mm
  • Quantity: 125 envelopes per pack
  • Closure: Features a convenient self-seal closure
  • Material: Made with 100% recycled materials
£21.59
£17.99 ex. VAT
£17.99
£21.59 inc. VAT
£21.59
£17.99 ex. VAT
£17.99
£21.59 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

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 tomorrow

Order now for dispatch tomorrow

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 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?