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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 54 products
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Q-Connect Padded Gusset Envelope Peel & Seal 140gsm B4 White (100 Pack)

Q Connect Padded Gusset Envelope Peel Seal 140gsm B4 White 100 Pack 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.

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

£84.71
£70.59 ex. VAT
£70.59
£84.71 inc. VAT
£84.71
£70.59 ex. VAT
£70.59
£84.71 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Q-Connect Envelope 25mm Gusset Peel & Seal 120gsm 305mm x 254 Manilla (100 Pack)

Q Connect Envelope 25mm Gusset Peel Seal 120gsm 305mm x 254 Manilla 100 Pack 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
£35.35
£29.46 ex. VAT
£29.46
£35.35 inc. VAT
£35.35
£29.46 ex. VAT
£29.46
£35.35 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Q-Connect Padded 50mm Gusset Envelope Peel & Seal 140gsm C5 White (100 Pack)

Q Connect Padded 50mm Gusset Envelope Peel Seal 140gsm C5 White 100 Pack 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.
£43.90
£36.58 ex. VAT
£36.58
£43.90 inc. VAT
£43.90
£36.58 ex. VAT
£36.58
£43.90 inc. VAT

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Order now for dispatch tomorrow

Basildon Bond Envelope Wallet Peel & Seal 120gsm DL White (500 Pack)

Basildon Bond Envelope Wallet Peel Seal 120gsm DL White 500 Pack 105220 F
500
Pack
  • 500 Envelopes per Pack - Ideal for frequent mailing
  • 100% Recycled Paper - Environmentally conscious 120gsm material
  • DL Size - Fits A5 or folded A4 sheets
  • Peel and Seal Closure - Secure, professional and time-saving
£51.58
£42.98 ex. VAT
£42.98
£51.58 inc. VAT
£51.58
£42.98 ex. VAT
£42.98
£51.58 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Bong E-Green Plus 80mm Gusset Peel & Seal Mailer 120gsm C3 Manilla (200 Pack)

Bong E Green Plus 80mm Gusset Peel Seal Mailer 120gsm C3 Manilla 200 Pack 611752 F
200
Pack
  • Durable & Waterproof: Crafted from 120gsm Kraft paper for reliable protection.
  • Extra Capacity: 80mm gusset accommodates thicker, bulkier items.
  • Secure Closure: Peel and seal design ensures a tamper-evident finish.
  • Convenient Features: Includes easy opening and a return address strip.
£122.00
£101.67 ex. VAT
£101.67
£122.00 inc. VAT
£122.00
£101.67 ex. VAT
£101.67
£122.00 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Plus Fabric Envelope Wallet Peel & Seal 120gsm DL White (500 Pack)

Plus Fabric Envelope Wallet Peel Seal 120gsm DL White 500 Pack 127233 F
500
Pack
  • Secure & Professional: Ideal for confidential documents and professional presentations.
  • Durable Material: Crafted from robust 120gsm paper for lasting quality.
  • Convenient Closure: Features a peel and seal closure with a tear strip for easy access.
  • Versatile Size: Fits A5 sheets folded once, or A4 sheets folded twice.
£81.67
£68.06 ex. VAT
£68.06
£81.67 inc. VAT
£81.67
£68.06 ex. VAT
£68.06
£81.67 inc. VAT

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Order now for dispatch tomorrow

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

Value Kraft Mailing Bag 100mm Gusset 100gsm 415x495mm Manilla 50 Pack 786651 F
50
Pack
  • 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.
£35.37
£29.48 ex. VAT
£29.48
£35.37 inc. VAT
£35.37
£29.48 ex. VAT
£29.48
£35.37 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Bong E-Green 50mm Gusset Peel & Seal Mailer 120gsm C4 Manilla (250 Pack)

Bong E Green 50mm Gusset Peel Seal Mailer 120gsm C4 Manilla 250 Pack 611751 F
250
Pack
  • Durable & Waterproof: Crafted from 120gsm Kraft paper for reliable protection.
  • Generous Gusset: Features a 50mm gusset for thicker contents.
  • Convenient Closure: Easy-peel and seal with a tamper-evident seal & return strip.
  • Pack of 250: Ideal for mailing catalogues, reports, and brochures.
£88.18
£73.48 ex. VAT
£73.48
£88.18 inc. VAT
£88.18
£73.48 ex. VAT
£73.48
£88.18 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Bong E-Green 40mm Gusset Peel & Seal Mailer 210gsm C5 Manilla (250 Pack)

Bong E Green 40mm Gusset Peel Seal Mailer 210gsm C5 Manilla 250 Pack 611750 F
250
Pack
  • Pack of 250: Ideal for bulk mailing needs.
  • 40mm Gusset: Provides extra space for thicker items.
  • Waterproof & Durable: Made from 120gsm Kraft paper.
  • Peel & Seal Closure: Includes a tamper-evident seal and return strip.
£66.49
£55.41 ex. VAT
£55.41
£66.49 inc. VAT
£66.49
£55.41 ex. VAT
£55.41
£66.49 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Blake Wallet Envelope Peel & Seal 120gsm C5 Red (250 Pack)

Blake Wallet Envelope Peel Seal 120gsm C5 Red 250 Pack 453098 F
250
Pack
  • Vibrant Red C5 Envelopes: Make your mail stand out.
  • Quality 120gsm Paper: Professional finish & reliable protection.
  • Peel & Seal Closure: Secure and easy to use.
  • Bulk Pack of 250: Ideal for businesses & frequent use.
£54.67
£45.56 ex. VAT
£45.56
£54.67 inc. VAT
£54.67
£45.56 ex. VAT
£45.56
£54.67 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Q-Connect Padded 50mm Gusset Envelope Peel & Seal 140gsm E4 White (100 Pack)

Q Connect Padded 50mm Gusset Envelope Peel Seal 140gsm E4 White 100 Pack 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

New Guardian 50mm Gusset Armour Envelope 130gsm 381mm x 279mm Manilla (100 Pack)

New Guardian 50mm Gusset Armour Envelope 130gsm 381mm x 279mm Manilla 100 Pack 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.
£195.50
£162.92 ex. VAT
£162.92
£195.50 inc. VAT
£195.50
£162.92 ex. VAT
£162.92
£195.50 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

New Guardian Strong Pocket Envelope Peel & Seal 130gsm DL Manilla (500 Pack)

New Guardian Strong Pocket Envelope Peel Seal 130gsm DL Manilla 500 Pack 103498 F
500
Pack
  • 500 Premium Envelopes: Pack contains 500 manilla envelopes
  • Strong and Durable: Built to withstand tough postal handling
  • Secure Peel and Seal: Reliable closure for a professional finish
  • DL Size: Ideal for standard letters and documents
This item is out of stock

New Guardian Strong Pocket Envelope Peel & Seal 130gsm DL Manilla (500 Pack)

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 Envelope Peel & Seal 140gsm C4 White (100 Pack)

Q Connect Padded 50mm Gusset Envelope Peel Seal 140gsm C4 White 100 Pack 181328 F
100
Pack
  • Durable Protection: Robust 3-layer construction resists damage during mailing.
  • 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 Envelope Peel & Seal 140gsm C4 White (100 Pack)

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.

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

Value Kraft Mailing Bag 100mm Gusset 100gsm 580x465mm Manilla 50 Pack 786652 F
50
Pack
  • Dimensions: 580x465x100mm with a 100mm lip.
  • UK Made: Manufactured in the UK.
  • Convenient: Features twin peel and seal strips for easy returns.
This item is out of stock

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

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.

Blake Wallet Envelope Peel & Seal 130gsm C5 Metallic Gold (250 Pack)

Blake Wallet Envelope Peel Seal 130gsm C5 Metallic Gold 250 Pack 453105 F
250
Pack
  • Pack Size: 250 Metallic Gold envelopes.
  • Paper Weight: Crafted from high-quality 130gsm paper.
  • Envelope Size: C5 – fits A4 folded or A5 unfolded.
  • Closure Type: Convenient Peel and Seal for easy mailing.
This item is out of stock

Blake Wallet Envelope Peel & Seal 130gsm C5 Metallic Gold (250 Pack)

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.

Blake Wallet Envelope Peel & Seal 120gsm C5 Yellow (250 Pack)

Blake Wallet Envelope Peel Seal 120gsm C5 Yellow 250 Pack 453097 F
250
Pack
  • Colour: Bright Banana Yellow – makes mail stand out.
  • Size: C5 – fits A4 folded or A5 unfolded.
  • Closure: Peel and seal for quick dispatch.
  • Pack Size: 250 envelopes per pack.
This item is out of stock

Blake Wallet Envelope Peel & Seal 120gsm C5 Yellow (250 Pack)

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 Gusset Envelope 140gsm B4 Manilla (125 Pack)

Q Connect Gusset Envelope 140gsm B4 Manilla 125 Pack 766962 F
125
Pack
  • Holds bulky items with a 25mm expanding gusset.
  • Pack of 125 B4 manilla envelopes.
  • Durable 140gsm paper for reliable protection.
  • Features a strong peel and seal closure for security.
This item is out of stock

Q-Connect Gusset Envelope 140gsm B4 Manilla (125 Pack)

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?