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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 16 products
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Purely Everyday Peel and Seal Padded Bubble Pocket Envelopes C5 White (100 Pack) 157583

Purely Everyday Peel and Seal Padded Bubble Pocket Envelopes C5 White 100 Pack 157583
100
Pack
  • Size: C5 (162mm x 229mm)
  • Pack of 100
  • Peel and seal
  • Shock-absorbent inner lining
£10.36
£8.63 ex. VAT
£8.63
£10.36 inc. VAT
£10.36
£8.63 ex. VAT
£8.63
£10.36 inc. VAT

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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

Q-Connect Envelope 25mm Gusset Peel and Seal 120gsm C4 Manilla (100 Pack) KF3527

Q Connect Envelope 25mm Gusset Peel and Seal 120gsm C4 Manilla 100 Pack KF3527 123713 F
100
Pack
  • Suitable for A4 documents
  • 25mm expanding gusset for bulky items
  • Strong peel and seal closure
  • Pack of 100 x 120gsm manilla envelopes
£20.82
£17.35 ex. VAT
£17.35
£20.82 inc. VAT
£20.82
£17.35 ex. VAT
£17.35
£20.82 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Q-Connect Envelope 25mm Gusset Peel and Seal 120gsm 381x254mm Manilla (100 Pack) KF3528

Q Connect Envelope 25mm Gusset Peel and Seal 120gsm 381x254mm Manilla 100 Pack KF3528 102004 F
100
Pack
  • Dimensions: 381 x 254 x 25mm
  • 25mm expanding gusset for bulky items
  • Pack of 100 durable 120gsm manilla envelopes
  • Strong peel and seal closure for secure mailing
£26.57
£22.14 ex. VAT
£22.14
£26.57 inc. VAT
£26.57
£22.14 ex. VAT
£22.14
£26.57 inc. VAT

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Order now for dispatch tomorrow

New Guardian Envelopes Gusset 130gsm C4 Manilla (100 Pack) E27266

New Guardian Envelopes Gusset 130gsm C4 Manilla 100 Pack E27266 101376 F
100
Pack
  • Pack of 100 C4 Envelopes for A4 Documents
  • 25mm Expanding Gusset - Accommodates Bulky Items
  • Durable 130gsm Paper for Reliable Protection
  • Easy Peel & Seal Closure with Strong Power-Tac Adhesion
£64.21
£53.51 ex. VAT
£53.51
£64.21 inc. VAT
£64.21
£53.51 ex. VAT
£53.51
£64.21 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Basildon Bond Envelopes Wallet Peel and Seal 120gsm DL White (100 Pack) F80275

Basildon Bond Envelopes Wallet Peel and Seal 120gsm DL White 100 Pack F80275 103323 F
100
Pack
  • 100 high-quality envelopes
  • Fits A5 sheets folded once, or A4 sheets folded twice
  • Crafted from smooth, 120gsm white recycled paper
  • Ensures a secure, professional finish and saves time
£14.97
£12.47 ex. VAT
£12.47
£14.97 inc. VAT
£14.97
£12.47 ex. VAT
£12.47
£14.97 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

New Guardian Armour Envelopes Gusset 130gsm C4 Manilla (100 Pack) A28113

New Guardian Armour Envelopes Gusset 130gsm C4 Manilla 100 Pack A28113 114759 F
100
Pack
  • Durable Material: 130gsm paper with woven polyester reinforcement.
  • Secure Closure: Peel and seal with Power-Tac adhesion for a reliable bond.
  • A4 Compatible: C4 size, suitable for A4 documents.
  • Expanding Gusset: 50mm gusset accommodates thicker contents.
£138.18
£115.15 ex. VAT
£115.15
£138.18 inc. VAT
£138.18
£115.15 ex. VAT
£115.15
£138.18 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Q-Connect Padded 50mm Gusset Envelopes Peel and Seal 140gsm C5 White (100 Pack) KF3530

Q Connect Padded 50mm Gusset Envelopes Peel and Seal 140gsm C5 White 100 Pack KF3530 113243 F
100
Pack
  • Size: C5 (229 x 162 x 50mm) - Perfect for documents & small parcels.
  • 100-Pack: Includes 100 envelopes per pack for ample supply.
  • Durable Protection: Robust construction with corrugated middle resists damage.
  • Eco-Friendly: Made from 100% recycled materials & fully recyclable.
£59.19
£49.32 ex. VAT
£49.32
£59.19 inc. VAT
£59.19
£49.32 ex. VAT
£49.32
£59.19 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Plus Fabric 25mm Gusset Envelopes Peel and Seal 120gsm C4 White (100 Pack) C26766

Plus Fabric 25mm Gusset Envelopes Peel and Seal 120gsm C4 White 100 Pack C26766 101568 F
100
Pack
  • Suitable for A4 documents
  • 25mm expanding gusset for bulky mail
  • Made from strong 120gsm paper
  • Easy peel and seal closure
£105.97
£88.31 ex. VAT
£88.31
£105.97 inc. VAT
£105.97
£88.31 ex. VAT
£88.31
£105.97 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

New Guardian Envelope 25mm Gusset P/Seal 130gsm 381x254mm Manilla (100 Pack) M27466

New Guardian Envelope 25mm Gusset P Seal 130gsm 381x254mm Manilla 100 Pack M27466 106599 F
100
Pack
  • Pack Size: 100 manilla envelopes
  • Expanding Gusset: 25mm for thicker contents
  • Durable Paper: Crafted from 130gsm paper
  • Secure Closure: Features a simple peel and seal with Power-Tac adhesion
£102.32
£85.27 ex. VAT
£85.27
£102.32 inc. VAT
£102.32
£85.27 ex. VAT
£85.27
£102.32 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

New Guardian 50mm Gusset Armour Envelope 130gsm 381x279mm Manilla (100 Pack) H28313

New Guardian 50mm Gusset Armour Envelope 130gsm 381x279mm Manilla 100 Pack H28313 103116 F
100
Pack
  • Durable & Secure: 100 heavyweight manilla envelopes for safe mailing.
  • Expanding Gusset: 50mm gusset accommodates bulky items.
  • Strong Closure: Peel and seal with reliable Power-Tac adhesion.
  • Reinforced Material: 130gsm paper with woven polyester for exceptional strength.
£221.42
£184.52 ex. VAT
£184.52
£221.42 inc. VAT
£221.42
£184.52 ex. VAT
£184.52
£221.42 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Q-Connect Padded 50mm Gusset Envelopes Peel and Seal 140gsm E4 White (100 Pack) KF3533

Q Connect Padded 50mm Gusset Envelopes Peel and Seal 140gsm E4 White 100 Pack KF3533 109137 F
100
Pack
  • Protective Padding: Robust 140gsm cover with corrugated & 90gsm inner layers.
  • Expanding Gusset: 50mm gusset accommodates bulkier items.
  • Recycled & Recyclable: Made from 100% recycled materials.
  • Convenient Closure: Features a peel and seal closure for easy mailing.
£195.29
£162.74 ex. VAT
£162.74
£195.29 inc. VAT
£195.29
£162.74 ex. VAT
£162.74
£195.29 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Q-Connect Envelope 25mm Gusset Peel and Seal 305x254 Manilla (100 Pack) KF3526

Q Connect Envelope 25mm Gusset Peel and Seal 305x254 Manilla 100 Pack KF3526 112032 F
100
Pack
  • Dimensions: 305 x 254 x 25mm
  • 25mm expanding gusset for bulky items
  • Pack of 100 durable 120gsm manilla envelopes
  • Strong peel and seal closure for secure mailing
£34.27
£28.56 ex. VAT
£28.56
£34.27 inc. VAT
£34.27
£28.56 ex. VAT
£28.56
£34.27 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Q-Connect Envelope 25mm Gusset Peel and Seal 120gsm 406x305mm Manilla (100 Pack) KF3529

Q Connect Envelope 25mm Gusset Peel and Seal 120gsm 406x305mm Manilla 100 Pack KF3529 141280 F
100
Pack
  • Dimensions: 406 x 305 x 25mm
  • Ideal for catalogues, reports & bulky items
  • 120gsm paper for durable mailing
  • Pack of 100 manilla envelopes with peel & seal closure
This item is out of stock

Q-Connect Envelope 25mm Gusset Peel and Seal 120gsm 406x305mm Manilla (100 Pack) KF3529

Please enter your email address below and we will contact you as soon as this item becomes available. Your email will not be used for anything else.

Q-Connect Padded 50mm Gusset Envelopes Peel and Seal 140gsm C4 White (100 Pack) KF3531

Q Connect Padded 50mm Gusset Envelopes Peel and Seal 140gsm C4 White 100 Pack KF3531 181328 F
100
Pack
  • Durable Protection: Robust 3-layer construction resists damage during mailing.
  • Eco-Friendly Choice: Made from 100% recycled materials & fully recyclable.
  • C4 Size & 100-Pack: Includes 100 white C4 (324 x 229 x 50mm) envelopes.
  • Expanding Gusset & Easy Closure: Features a 50mm gusset for bulkier items and a convenient peel and seal closure.
This item is out of stock

Q-Connect Padded 50mm Gusset Envelopes Peel and Seal 140gsm C4 White (100 Pack) KF3531

Please enter your email address below and we will contact you as soon as this item becomes available. Your email will not be used for anything else.

Q-Connect Padded Gusset Envelopes Peel and Seal 140gsm B4 White (100 Pack) KF3532

Q Connect Padded Gusset Envelopes Peel and Seal 140gsm B4 White 100 Pack KF3532 108452 F
100
Pack

  • 100-pack of B4 envelopes: Dimensions 353 x 250 x 50mm, ideal for various goods.

  • Robust 3-layer construction: 140gsm/120gsm/90gsm layers for reliable protection during shipping.

  • Eco-friendly & Recyclable: Made from 100% recycled materials and fully recyclable.

  • Easy & Secure Closure: Features a convenient peel and seal closure with a 50mm expanding gusset.

This item is out of stock

Q-Connect Padded Gusset Envelopes Peel and Seal 140gsm B4 White (100 Pack) KF3532

Please enter your email address below and we will contact you as soon as this item becomes available. Your email will not be used for anything else.

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?