Best Stationery Supplies Envelopes of 2026

Last updated on 04/04/2026

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45 White Mailing Envelopes, 100 GSM Mixed Sized Self Seal Greeting Card Envelopes, Invitation Envelopes for Posting Mailing Home Office and Ecommerce(15 DL+15 C5+15 C4+1opener)

45 White Mailing Envelopes, 100 GSM Mixed Sized Self Seal Greeting Card Envelopes, Invitation Envelopes for Posting Mailing Home Office and Ecommerce(15 DL+15 C5+15 C4+1opener)

Comes with envelope opener.
Quick self-seal adhesive strip.
Security tinted for privacy.

Main Highlights

PACKAGE INCLUDES - A pack of 45pcs white envelopes contains 15pcs DL series,15pcs C4 series and 15pcs C5 series,also comes with a random color envelope opener
DETAILS - 100GSM, DL:110X220MM(4-1/3 x 8-2/3inch), C5:229X162MM(9 x 6-3/8 inch),C4:229X324MM(9 x 12 3/4inch)
SELF-SEAL - Quick and convenient adhesive strip provides a reliable, tamper-evident tight seal to secure all enclosures. just remove strip and press to close
SECURITY TINTED - Each envelope is designed with blue printed patterns inside to protect contents and sensitive information
MULTIPURPOSE - As this is a mixed package that meets the needs of your various sizes of letters. It is perfect for mailing and organizing various letters, cards, files, menu, collectibles, commemorative cards and other families or commercial uses

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45 White Mailing Envelopes, 100 GSM Mixed Sized Self Seal Greeting Card Envelopes, Invitation Envelopes for Posting Mailing Home Office and Ecommerce(15 DL+15 C5+15 C4+1opener)

Comes with envelope opener.
Quick self-seal adhesive strip.
Security tinted for privacy.

Main Highlights

PACKAGE INCLUDES - A pack of 45pcs white envelopes contains 15pcs DL series,15pcs C4 series and 15pcs C5 series,also comes with a random color envelope opener
DETAILS - 100GSM, DL:110X220MM(4-1/3 x 8-2/3inch), C5:229X162MM(9 x 6-3/8 inch),C4:229X324MM(9 x 12 3/4inch)
SELF-SEAL - Quick and convenient adhesive strip provides a reliable, tamper-evident tight seal to secure all enclosures. just remove strip and press to close
SECURITY TINTED - Each envelope is designed with blue printed patterns inside to protect contents and sensitive information
MULTIPURPOSE - As this is a mixed package that meets the needs of your various sizes of letters. It is perfect for mailing and organizing various letters, cards, files, menu, collectibles, commemorative cards and other families or commercial uses

Value for Money

FIRST CHOICE KAYA 25, 50, 100 DL White Mailing Envelopes Self Seal for Posting mailing Home Office and Ecommerce Peel and Seal (100)

FIRST CHOICE KAYA 25, 50, 100 DL White Mailing Envelopes Self Seal for Posting mailing Home Office and Ecommerce Peel and Seal (100)

FIRST CHOICE KAYA

Great protection for items.
Reusable and durable design.
Easy Peel & Seal.

Main Highlights

Great Protection - ProtectiveEnvelopes that can be used to protect beads, small and tiny things from scuffs and scrapes.Ideal for invoices, letters and more
Usage - Reusable, It is durable and designed for repeated use and eyelets are reinforced . Great for home, office, school, interoffice or mailing.
Condition - Make a difference to your mail with these luxurious Premium Business envelopes.
Save Time - Easy to use Peel & Seal close, and Rip & Strip open; Speed up packing times; Convenient for customers
Quantity - Choose the Quantity of Pack of 25 , 50 or 100

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FIRST CHOICE KAYA

FIRST CHOICE KAYA 25, 50, 100 DL White Mailing Envelopes Self Seal for Posting mailing Home Office and Ecommerce Peel and Seal (100)

Great protection for items.
Reusable and durable design.
Easy Peel & Seal.

Main Highlights

Great Protection - ProtectiveEnvelopes that can be used to protect beads, small and tiny things from scuffs and scrapes.Ideal for invoices, letters and more
Usage - Reusable, It is durable and designed for repeated use and eyelets are reinforced . Great for home, office, school, interoffice or mailing.
Condition - Make a difference to your mail with these luxurious Premium Business envelopes.
Save Time - Easy to use Peel & Seal close, and Rip & Strip open; Speed up packing times; Convenient for customers
Quantity - Choose the Quantity of Pack of 25 , 50 or 100

Officely C5 Self Seal Pocket Envelopes 90 GSM 229mm x 162mm, White - Pack of 50

Officely C5 Self Seal Pocket Envelopes 90 GSM 229mm x 162mm, White - Pack of 50

Premium quality paper material.
Perfect size for documents.
Self-seal for quick closure.

Main Highlights

High quality C5 pocket envelopes
90 GSM thickness
High quality paper compared to alternatives
229 x 162 mm
Easy self seal closure
Blue opaque ensures contents remain confidential

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Officely C5 Self Seal Pocket Envelopes 90 GSM 229mm x 162mm, White - Pack of 50

Premium quality paper material.
Perfect size for documents.
Self-seal for quick closure.

Main Highlights

High quality C5 pocket envelopes
90 GSM thickness
High quality paper compared to alternatives
229 x 162 mm
Easy self seal closure
Blue opaque ensures contents remain confidential

Evour A4/C4 Self Seal White Pocket Envelopes – 229x324mm, 100 GSM, No Window – for Home, Office, and Business Mailing Pack of 25

Evour A4/C4 Self Seal White Pocket Envelopes – 229x324mm, 100 GSM, No Window – for Home, Office, and Business Mailing Pack of 25

Requires no extra materials.
Quick, secure self-seal closure.
Compatible with various printers.

Main Highlights

SELF-SEAL ENVELOPES- Each envelope has an ultra-strong self-seal adhesive strip that requires no moisture, A Quick Self Seal Closure.
NO WINDOW DESIGN - Manufactured with a windowless front panel for easy printing, labeling, stamps, or hand-addressing, perfect for quick, mass, home, and business mailings. Office Supply envelopes
HASSLE-FREE & PRACTICAL: The self-seal adhesive eliminates the need for any tape, glue, or licking to seal these envelopes - just fold & press the top flap to secure them shut! These envelopes are also compatible with most inkjet and laser printers.
A4 C4 Size: 324mm x 229mm White 100 GMs
MULTIPURPOSE: These envelopes are ideal for mailing & organizing invoices, letters, statements, catalogs, periodicals, brochures, etc. They are a cost-effective option for everyday home, office & commercial use!

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Evour A4/C4 Self Seal White Pocket Envelopes – 229x324mm, 100 GSM, No Window – for Home, Office, and Business Mailing Pack of 25

Requires no extra materials.
Quick, secure self-seal closure.
Compatible with various printers.

Main Highlights

SELF-SEAL ENVELOPES- Each envelope has an ultra-strong self-seal adhesive strip that requires no moisture, A Quick Self Seal Closure.
NO WINDOW DESIGN - Manufactured with a windowless front panel for easy printing, labeling, stamps, or hand-addressing, perfect for quick, mass, home, and business mailings. Office Supply envelopes
HASSLE-FREE & PRACTICAL: The self-seal adhesive eliminates the need for any tape, glue, or licking to seal these envelopes - just fold & press the top flap to secure them shut! These envelopes are also compatible with most inkjet and laser printers.
A4 C4 Size: 324mm x 229mm White 100 GMs
MULTIPURPOSE: These envelopes are ideal for mailing & organizing invoices, letters, statements, catalogs, periodicals, brochures, etc. They are a cost-effective option for everyday home, office & commercial use!

Blake Purely Everyday DL 110 x 220 mm 90 gsm Self Seal Wallet Envelopes (13882/100 PR) White - 100 Count ( Pack of 1)

Blake Purely Everyday DL 110 x 220 mm 90 gsm Self Seal Wallet Envelopes (13882/100 PR) White - 100 Count ( Pack of 1)

Effortless self-sealing closure.
Enhanced mailing privacy.
Ideal for office use.

Main Highlights

Self Seal
Security opaque
Suitable for Office mailings
Model number: 13882/100 PR

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Blake Purely Everyday DL 110 x 220 mm 90 gsm Self Seal Wallet Envelopes (13882/100 PR) White - 100 Count ( Pack of 1)

Effortless self-sealing closure.
Enhanced mailing privacy.
Ideal for office use.

Main Highlights

Self Seal
Security opaque
Suitable for Office mailings
Model number: 13882/100 PR

Blake Purely Everyday DL 110 x 220 mm 90 gsm Wallet Self Seal Envelopes (13882/50 PR) White - Pack of 50

Blake Purely Everyday DL 110 x 220 mm 90 gsm Wallet Self Seal Envelopes (13882/50 PR) White - Pack of 50

Perfect for invoices and letters.
Convenient self-seal closure.
Durable quality paper.

Main Highlights

Purely everyday DL 110 x 220 mm 90 gsm wallet self seal envelope - White
Ideal for invoices, letters and brochures
Easy to use Self Seal closure
Quality 90 gm paper

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Blake Purely Everyday DL 110 x 220 mm 90 gsm Wallet Self Seal Envelopes (13882/50 PR) White - Pack of 50

Perfect for invoices and letters.
Convenient self-seal closure.
Durable quality paper.

Main Highlights

Purely everyday DL 110 x 220 mm 90 gsm wallet self seal envelope - White
Ideal for invoices, letters and brochures
Easy to use Self Seal closure
Quality 90 gm paper

TRIPLE PRIO DL White Peel and Seal Envelopes - Secure Self Seal No Window Design - Perfect for Home Office & Business Mails (25)

TRIPLE PRIO DL White Peel and Seal Envelopes - Secure Self Seal No Window Design - Perfect for Home Office & Business Mails (25)

Protects sensitive data securely.
Convenient self-seal adhesive.
Ideal for large mailings.

Main Highlights

SECURITY TINTED - Our premium business envelopes are designed with a security tint pattern to protect sensitive data inside the documents.
QUICK PEEL AND SEAL CLOSURE - Each envelope has an ultra strong self-seal adhesive strip that requires no moisture.
NO WINDOW DESIGN - Manufactured with a windowless front panel for easy printing, labeling, stamps or hand-addressing, perfect for quick, mass, home and business mailings.
LONG LASTING SUPPLY - Packs of 25, 50 and 100 envelopes are available for a long lasting supply. Ideal for everyday home, school, office and business correspondence for large mailing tasks. This simply makes it a perfect stationary set.
PRINTER FRIENDLY - Printer friendly with smooth thick paper saves you time and frustration while printing without having to worry about jamming.

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TRIPLE PRIO DL White Peel and Seal Envelopes - Secure Self Seal No Window Design - Perfect for Home Office & Business Mails (25)

Protects sensitive data securely.
Convenient self-seal adhesive.
Ideal for large mailings.

Main Highlights

SECURITY TINTED - Our premium business envelopes are designed with a security tint pattern to protect sensitive data inside the documents.
QUICK PEEL AND SEAL CLOSURE - Each envelope has an ultra strong self-seal adhesive strip that requires no moisture.
NO WINDOW DESIGN - Manufactured with a windowless front panel for easy printing, labeling, stamps or hand-addressing, perfect for quick, mass, home and business mailings.
LONG LASTING SUPPLY - Packs of 25, 50 and 100 envelopes are available for a long lasting supply. Ideal for everyday home, school, office and business correspondence for large mailing tasks. This simply makes it a perfect stationary set.
PRINTER FRIENDLY - Printer friendly with smooth thick paper saves you time and frustration while printing without having to worry about jamming.

C5 / A5 White Peel & Seal Envelopes Pack of 30

C5 / A5 White Peel & Seal Envelopes Pack of 30

Free delivery in the UK.
Sends letters and documents easily.
Secure printing prevents visibility.

Main Highlights

Consegna gratuita nel regno unito.
Pliage peut envoyer des letters, documents et feuilles de papier a4 une fois
Stampa di sicurezza non vedere attraverso

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C5 / A5 White Peel & Seal Envelopes Pack of 30

Free delivery in the UK.
Sends letters and documents easily.
Secure printing prevents visibility.

Main Highlights

Consegna gratuita nel regno unito.
Pliage peut envoyer des letters, documents et feuilles de papier a4 une fois
Stampa di sicurezza non vedere attraverso

Postmaster Envelopes DL Peel & Seal 100GSM White Paper - 50 Pack

Postmaster Envelopes DL Peel & Seal 100GSM White Paper - 50 Pack

Peel & seal for convenience.
Thicker paper for protection.
Made in the UK.

Main Highlights

PEEL & SEAL - Doesn't lose stickiness, quicker & more hygienic!
100 GSM PAPER - Thicker paper means your letters are better protected
MADE IN THE UK - we manufacture these envelopes in the UK, which means a lower carbon footprint
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
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

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Postmaster Envelopes DL Peel & Seal 100GSM White Paper - 50 Pack

Peel & seal for convenience.
Thicker paper for protection.
Made in the UK.

Main Highlights

PEEL & SEAL - Doesn't lose stickiness, quicker & more hygienic!
100 GSM PAPER - Thicker paper means your letters are better protected
MADE IN THE UK - we manufacture these envelopes in the UK, which means a lower carbon footprint
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
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

Evour C5/A5 Self-Seal Envelopes – 229×162 mm, 90 GSM, No-Window White Pocket – Pack of 25 Strong Self-Adhesive Mailing Envelopes for Office, Business & UK Post

Evour C5/A5 Self-Seal Envelopes – 229×162 mm, 90 GSM, No-Window White Pocket – Pack of 25 Strong Self-Adhesive Mailing Envelopes for Office, Business & UK Post

Quick self-seal closure.
Easy printing, no window.
Multipurpose and cost-effective.

Main Highlights

SIMPLE SELF-SEAL CLOSURE – Peel and seal quickly with the strong adhesive strip. No licking or tape needed.
DURABLE 90 GSM PAPER – Thick, tear-resistant envelopes protect contents during handling and shipping.
CLEAN NO-WINDOW DESIGN – Blank white front suitable for printing, labels, or handwritten addresses.
CORRECT C5 / A5 SIZE – Fits A4 paper folded once or A5 documents; fully compliant with UK postal standards.
PRACTICAL PACK OF 25 – Perfect for home or office use; ideal for letters, invoices, cards, and small mailing jobs.

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Evour C5/A5 Self-Seal Envelopes – 229×162 mm, 90 GSM, No-Window White Pocket – Pack of 25 Strong Self-Adhesive Mailing Envelopes for Office, Business & UK Post

Quick self-seal closure.
Easy printing, no window.
Multipurpose and cost-effective.

Main Highlights

SIMPLE SELF-SEAL CLOSURE – Peel and seal quickly with the strong adhesive strip. No licking or tape needed.
DURABLE 90 GSM PAPER – Thick, tear-resistant envelopes protect contents during handling and shipping.
CLEAN NO-WINDOW DESIGN – Blank white front suitable for printing, labels, or handwritten addresses.
CORRECT C5 / A5 SIZE – Fits A4 paper folded once or A5 documents; fully compliant with UK postal standards.
PRACTICAL PACK OF 25 – Perfect for home or office use; ideal for letters, invoices, cards, and small mailing jobs.

We scanned 282 products

We reviewed these offers relevant to the Stationery Supplies 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 Uncle Paul, FIRST CHOICE KAYA, Officely, evour, Blake, TRIPLE PRIO, Tallon, Postmaster, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Stationery Supplies Envelopes in the market, we considered we took a deep dive into 1411 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 45 White Mailing Envelopes, 100 GSM Mixed Sized Self Seal Greeting Card Envelopes, Invitation Envelopes for Posting Mailing Home Office and Ecommerce(15 DL+15 C5+15 C4+1opener). We love many things about this product by Uncle Paul. What sets it apart from the competition is Comes with envelope opener, Quick self-seal adhesive strip, Security tinted for privacy.
The best value product for most shoppers and where user satisfaction is continuously the highest is FIRST CHOICE KAYA 25, 50, 100 DL White Mailing Envelopes Self Seal for Posting mailing Home Office and Ecommerce Peel and Seal (100) by FIRST CHOICE KAYA based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Stationery Supplies Envelopes and the best cost-to-value ratio is C5 / A5 White Peel & Seal Envelopes Pack of 30at Tallon with a 14% discount.
Our list of the best Stationery Supplies 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.