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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 12 products
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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 Office Envelopes Gusset 25mm Peel and Seal 115gsm C4 Manilla (125 Pack) 906527

5 Star Office Envelopes Gusset 25mm Peel and Seal 115gsm C4 Manilla 125 Pack 906527 140107 F
125
Pack
  • Pack of 125 manilla C4 envelopes
  • Peel & Seal closure for quick and easy use
  • 25mm gusset accommodates bulkier mail
  • 115gsm paper weight for reliable quality
£18.96
£15.80 ex. VAT
£15.80
£18.96 inc. VAT
£18.96
£15.80 ex. VAT
£15.80
£18.96 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 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

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

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

Order now for dispatch today

Order now for dispatch today

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 today

Order now for dispatch today

5 Star Value Envelope Gusset 25mm Peel and Seal 115gsm C4 Manilla (125 Pack) 652532

5 Star Value Envelope Gusset 25mm Peel and Seal 115gsm C4 Manilla 125 Pack 652532 282936 F
125
Pack
  • Size: C4
  • Gusset: 25mm for larger items
  • Closure: Peel and Seal for swift fastening
  • Quantity: Pack of 125 manilla envelopes
£20.91
£17.42 ex. VAT
£17.42
£20.91 inc. VAT
£20.91
£17.42 ex. VAT
£17.42
£20.91 inc. VAT

Order now for dispatch today

Order now for dispatch today

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

Order now for dispatch today

Order now for dispatch today

5 Star Office Envelopes Recycled Pocket Peel and Seal 115gsm 381x254mm Manilla (250 Pack) D90015

5 Star Office Envelopes Recycled Pocket Peel and Seal 115gsm 381x254mm Manilla 250 Pack D90015 115858 F
250
Pack
  • Pack Size: 250 manilla envelopes
  • Convenient Closure: Peel and seal for easy use
  • Pocket Opening: Access contents from the shorter side
  • Eco-Friendly: Made with 100% recycled content
£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 today

Order now for dispatch today

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 today

Order now for dispatch today

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 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?