Best C5 Brown Window Envelopes of 2026

Last updated on 09/04/2026

Advertising disclosure

Advertising disclosure

Most Relevant

Electronics Home & Kitchen Computers Office Supplies Toys & Games Sports & Fitness

Most Relevant

Blake Purely Everyday C5 162 x 229 mm 90 gsm Self Seal Wallet Window Envelopes (1608) Manilla - Pack of 500

Blake Purely Everyday C5 162 x 229 mm 90 gsm Self Seal Wallet Window Envelopes (1608) Manilla - Pack of 500

Self-seal closure for convenience.
High quality paper ensures durability.
Ideal for professional communication needs.

Main Highlights

Easy to use Self Seal closure
High quality 90 gsm paper
Perfect for business correspondance, letters, brochures and more
Window: 45 x 90mm, 60 up, 20 left

Product image 1

Product image 2

Product image 3

Blake Purely Everyday C5 162 x 229 mm 90 gsm Self Seal Wallet Window Envelopes (1608) Manilla - Pack of 500

Self-seal closure for convenience.
High quality paper ensures durability.
Ideal for professional communication needs.

Main Highlights

Easy to use Self Seal closure
High quality 90 gsm paper
Perfect for business correspondance, letters, brochures and more
Window: 45 x 90mm, 60 up, 20 left

Value for Money

Blake Purely Everyday C5 229 x 162 mm 90 gsm Pocket Self Seal Window Envelopes (18099) Manilla - Pack of 500

Blake Purely Everyday C5 229 x 162 mm 90 gsm Pocket Self Seal Window Envelopes (18099) Manilla - Pack of 500

Self Seal closure convenience.
High quality paper.
Ideal for various correspondences.

Main Highlights

Easy to use Self Seal closure
High quality 90 gsm paper
Perfect for business correspondance, letters, brochures and more
Window: 45 x 90mm, 60 up, 20 left

Product image 1

Product image 2

Product image 3

Product image 4

Blake Purely Everyday C5 229 x 162 mm 90 gsm Pocket Self Seal Window Envelopes (18099) Manilla - Pack of 500

Self Seal closure convenience.
High quality paper.
Ideal for various correspondences.

Main Highlights

Easy to use Self Seal closure
High quality 90 gsm paper
Perfect for business correspondance, letters, brochures and more
Window: 45 x 90mm, 60 up, 20 left

Blake Purely Packaging C5 229 x 162 x 25 mm 120 gsm Gusset Pocket Peel & Seal Window Envelopes (6001) White - Pack of 125

Blake Purely Packaging C5 229 x 162 x 25 mm 120 gsm Gusset Pocket Peel & Seal Window Envelopes (6001) White - Pack of 125

Secure closure ensures product safety.
High quality paper enhances durability.
Perfect for various printed materials.

Main Highlights

Secure peel and seal closure for ease of use, added security and extra shelf life
Made from high quality 120 gsm paper
Ideal for catalogues, books, brochures and more
Useful for catalogues, books etc.

Product image 1

Product image 2

Product image 3

Product image 4

Blake Purely Packaging C5 229 x 162 x 25 mm 120 gsm Gusset Pocket Peel & Seal Window Envelopes (6001) White - Pack of 125

Secure closure ensures product safety.
High quality paper enhances durability.
Perfect for various printed materials.

Main Highlights

Secure peel and seal closure for ease of use, added security and extra shelf life
Made from high quality 120 gsm paper
Ideal for catalogues, books, brochures and more
Useful for catalogues, books etc.

Blake Purely Everyday 90 gsm C5 229 x 162 mm Pocket Self Seal Window Envelopes (12084) White - Pack of 500

Blake Purely Everyday 90 gsm C5 229 x 162 mm Pocket Self Seal Window Envelopes (12084) White - Pack of 500

Easy self-seal closure.
Excellent paper quality.
Perfect for business correspondence.

Main Highlights

Easy to use Self Seal closure
High quality 90 gsm paper
Perfect for business correspondance, letters, brochures and more
Window: 45 x 100mm, 72 up, 15 left
Self Seal
High quality weight paper
Suitable for brochures, catalogues etc.

Product image 1

Product image 2

Product image 3

Product image 4

Blake Purely Everyday 90 gsm C5 229 x 162 mm Pocket Self Seal Window Envelopes (12084) White - Pack of 500

Easy self-seal closure.
Excellent paper quality.
Perfect for business correspondence.

Main Highlights

Easy to use Self Seal closure
High quality 90 gsm paper
Perfect for business correspondance, letters, brochures and more
Window: 45 x 100mm, 72 up, 15 left
Self Seal
High quality weight paper
Suitable for brochures, catalogues etc.

Q-Connect C5 Envelopes Window Pocket Peel and Seal 115gsm Manilla (Pack of 500)

Q-Connect C5 Envelopes Window Pocket Peel and Seal 115gsm Manilla (Pack of 500)

Heavyweight paper ensures durability.
Peel and seal closure.
Large pack of 500.

Main Highlights

Pocket envelopes with address window
Heavyweight 115gsm paper
Window size: 90 x 45 mm
Window position: 57 mm in, 20 mm up
Peel and seal closure
Size: C5 (229 x 162 mm)
Colour: Manilla
Pack of 500

Product image 1

Product image 2

Product image 3

Q-Connect C5 Envelopes Window Pocket Peel and Seal 115gsm Manilla (Pack of 500)

Heavyweight paper ensures durability.
Peel and seal closure.
Large pack of 500.

Main Highlights

Pocket envelopes with address window
Heavyweight 115gsm paper
Window size: 90 x 45 mm
Window position: 57 mm in, 20 mm up
Peel and seal closure
Size: C5 (229 x 162 mm)
Colour: Manilla
Pack of 500

Blake Purely Everyday C5+ 162 x 235 mm 80 gsm Manilla Gummed Mailer CBC Window Envelopes (4402CBC) - Pack of 500

Blake Purely Everyday C5+ 162 x 235 mm 80 gsm Manilla Gummed Mailer CBC Window Envelopes (4402CBC) - Pack of 500

Effortless addressing with windows.
Professional, neat mail presentation.
Pack of five hundred.

Main Highlights

Save time and enhance presentation with brown window envelopes, designed for quick and easy addressing. The transparent window eliminates the need for manual labelling, ensuring a neat, professional look for business and personal mailings.
Pack of 500 Qty.
Size: 162 x 235mm (6.4 x 9.3 Inches), Suitable for C5+uses | Sealing Type: Gummed
Sealing Type: Gummed
Model No. 4402CBC

Product image 1

Product image 2

Product image 3

Blake Purely Everyday C5+ 162 x 235 mm 80 gsm Manilla Gummed Mailer CBC Window Envelopes (4402CBC) - Pack of 500

Effortless addressing with windows.
Professional, neat mail presentation.
Pack of five hundred.

Main Highlights

Save time and enhance presentation with brown window envelopes, designed for quick and easy addressing. The transparent window eliminates the need for manual labelling, ensuring a neat, professional look for business and personal mailings.
Pack of 500 Qty.
Size: 162 x 235mm (6.4 x 9.3 Inches), Suitable for C5+uses | Sealing Type: Gummed
Sealing Type: Gummed
Model No. 4402CBC

C5 229 x 162 mm 100gsm Brown Self Seal Pocket Envelopes - No Window, Greeting Card Invitation Envelopes for School, Home, Office, Ecommerce - Pack of 100

C5 229 x 162 mm 100gsm Brown Self Seal Pocket Envelopes - No Window, Greeting Card Invitation Envelopes for School, Home, Office, Ecommerce - Pack of 100

Quick and convenient adhesive strip.
Eco-friendly recyclable kraft paper.
Perfect for personal use.

Main Highlights

Kraft Paper Envelopes - Each 100gsm C5 envelope is ideal for business or personal use, send checks, letters, cards,and invitations
SELF SEAL - Quick and convenient adhesive strip provides a reliable, tamper-evident tight seal to secure all enclosures, no need for any other tape, glue or licking to seal
HIGH QUALITY - These bulk envelopes are made of high quality eco-friendly brown kraft paper which is recyclable
DIMENSIONS - These brown business envelopes measure 9 x 6-3/8 inches（229x162mm）
What's Included: You will receive a total of 100 brown letter envelopes

Product image 1

Product image 2

Product image 3

Product image 4

C5 229 x 162 mm 100gsm Brown Self Seal Pocket Envelopes - No Window, Greeting Card Invitation Envelopes for School, Home, Office, Ecommerce - Pack of 100

Quick and convenient adhesive strip.
Eco-friendly recyclable kraft paper.
Perfect for personal use.

Main Highlights

Kraft Paper Envelopes - Each 100gsm C5 envelope is ideal for business or personal use, send checks, letters, cards,and invitations
SELF SEAL - Quick and convenient adhesive strip provides a reliable, tamper-evident tight seal to secure all enclosures, no need for any other tape, glue or licking to seal
HIGH QUALITY - These bulk envelopes are made of high quality eco-friendly brown kraft paper which is recyclable
DIMENSIONS - These brown business envelopes measure 9 x 6-3/8 inches（229x162mm）
What's Included: You will receive a total of 100 brown letter envelopes

Postmaster C5 Window Envelopes 229 x 162 mm A5 90 GSM Self Seal White Bulk Business Pack of 500

Postmaster C5 Window Envelopes 229 x 162 mm A5 90 GSM Self Seal White Bulk Business Pack of 500

Keeps documents private, opaque inside.
Sustainable, PEFC-certified envelopes.
Secure, self-seal closing.

Main Highlights

C5 ENVELOPE - Designed to take sheets of A4 Paper folded in half, or sheets of A5 paper unfolded. Designed to be sent using a single 1st Class or 2nd Class Stamp (max 100g)
KEEPS YOUR DOCUMENTS PRIVATE - our envelopes are printed on the inside with an opaque blue pattern that makes it difficult to see what is inside the envelope
PEFC-CERTIFIED FOR SUSTAINABILITY - PEFC is a European based Forest certification system, that allows small- and family forest owners to demonstrate their excellence in sustainable forest management
HYGIENIC & FAST - this envelope features Self Seal closing, which means no licking or peeling. Simply press the flap down for a secure, hassle free close
MADE IN THE UK - we manufacture millions of Envelopes for some of Britain's biggest Organisations as well as for thousands of small, home based businesses using quality, bright white 90GSM paper

Product image 1

Product image 2

Product image 3

Product image 4

Postmaster C5 Window Envelopes 229 x 162 mm A5 90 GSM Self Seal White Bulk Business Pack of 500

Keeps documents private, opaque inside.
Sustainable, PEFC-certified envelopes.
Secure, self-seal closing.

Main Highlights

C5 ENVELOPE - Designed to take sheets of A4 Paper folded in half, or sheets of A5 paper unfolded. Designed to be sent using a single 1st Class or 2nd Class Stamp (max 100g)
KEEPS YOUR DOCUMENTS PRIVATE - our envelopes are printed on the inside with an opaque blue pattern that makes it difficult to see what is inside the envelope
PEFC-CERTIFIED FOR SUSTAINABILITY - PEFC is a European based Forest certification system, that allows small- and family forest owners to demonstrate their excellence in sustainable forest management
HYGIENIC & FAST - this envelope features Self Seal closing, which means no licking or peeling. Simply press the flap down for a secure, hassle free close
MADE IN THE UK - we manufacture millions of Envelopes for some of Britain's biggest Organisations as well as for thousands of small, home based businesses using quality, bright white 90GSM paper

Q-Connect C5 Envelopes Window Pocket Self Seal 90 gsm White (Pack of 500)

Q-Connect C5 Envelopes Window Pocket Self Seal 90 gsm White (Pack of 500)

Tough 90gsm paper quality.
Convenient self seal closure.
Ample pack of 500.

Main Highlights

Pocket envelopes with window
Tough 90gsm paper
Window size: 90 x 45mm
Window position: 57mm in, 20mm up
Self seal closure
Size: C5 (229 x 162mm)
Colour: white
Pack of 500

Product image 1

Product image 2

Product image 3

Q-Connect C5 Envelopes Window Pocket Self Seal 90 gsm White (Pack of 500)

Tough 90gsm paper quality.
Convenient self seal closure.
Ample pack of 500.

Main Highlights

Pocket envelopes with window
Tough 90gsm paper
Window size: 90 x 45mm
Window position: 57mm in, 20mm up
Self seal closure
Size: C5 (229 x 162mm)
Colour: white
Pack of 500

Herlitz Envelope C5 with Window 90 g Self Welded, Recycled Paper with Blue Angel (Pack of 10, Brown with Window

Herlitz Envelope C5 with Window 90 g Self Welded, Recycled Paper with Blue Angel (Pack of 10, Brown with Window

Eco-friendly Braun design.
Convenient peel and seal.
Perfect window for contents.

Main Highlights

Envelope C5
Peel and Seal Window
16.2 x 22.9 cm
Braun
Blauer Engel

Product image 1

Herlitz Envelope C5 with Window 90 g Self Welded, Recycled Paper with Blue Angel (Pack of 10, Brown with Window

Eco-friendly Braun design.
Convenient peel and seal.
Perfect window for contents.

Main Highlights

Envelope C5
Peel and Seal Window
16.2 x 22.9 cm
Braun
Blauer Engel

We scanned 891 products

We reviewed these offers relevant to the C5 Brown Window Envelopes within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Blake, Q-Connect, Uncle Paul, Postmaster, herlitz, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best C5 Brown Window Envelopes in the market, we considered we took a deep dive into 4456 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is Blake Purely Everyday C5 162 x 229 mm 90 gsm Self Seal Wallet Window Envelopes (1608) Manilla - Pack of 500. We love many things about this product by Blake. What sets it apart from the competition is Self-seal closure for convenience. , High quality paper ensures durability. , Ideal for professional communication needs. .
The best value product for most shoppers and where user satisfaction is continuously the highest is Blake Purely Everyday C5 229 x 162 mm 90 gsm Pocket Self Seal Window Envelopes (18099) Manilla - Pack of 500 by Blake based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for C5 Brown Window Envelopes and the best cost-to-value ratio is Postmaster C5 Window Envelopes 229 x 162 mm A5 90 GSM Self Seal White Bulk Business Pack of 500at Postmaster with a 10% discount.
Our list of the best C5 Brown Window Envelopes is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.