10 Best close envelopes of 2026

Save up to 37% off

1

Splendoress
#10 Envelopes Letter Size Self Seal | 500 Business Mailing Security Peel and Sealing Envelope | 100% Tinted | no 10 White Windowless Legal Regular Plain Envelops Pack | 4-1/8 x 9-1/2 Inches | 24 LB
Main highlights

High Quality and Bulk Pricing
24 lbs envelopes at a fraction of the price.

Ideal for Business Mailing
Perfect for secure and efficient business correspondence.

Most Praised Feature: Self-Seal Convenience
Customers love the easy peel-and-stick closure.
Key specs
- size:500 Count
- color:White Wove
- shape:Rectangular
- closure:Self-Seal
- number of items:500
9.9

Exceptional

Our Rating
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2

Splendoress
#10 Envelopes Letter Size Self Seal | 500 Business Mailing Security Peel and Sealing Envelope | 100% Tinted | no 10 White Windowless Legal Regular Plain Envelops Pack | 4-1/8 x 9-1/2 Inches | 24 LB

10% Off
Main highlights

High Quality and Bulk Pricing
24 lbs envelopes at a fraction of the price.

Ideal for Business Mailing
Perfect for secure and efficient business correspondence.

Most Praised Feature: Self-Seal Convenience
Customers love the easy peel-and-stick closure.
Key specs
- size:500 Count
- color:White Wove
- shape:Rectangular
- closure:Self-Seal
- number of items:500
9.8

Exceptional

Our Rating
3

Quality Park
Quality Park Dab-N-Seal Envelope Moistener with Adhesive, 50ML Bottle, 4 Pack (46071)

20% Off
Main highlights

Fast-Drying Adhesive Formula
Moistens and seals up to 1,500 envelopes per 50 mL bottle.

Ideal for Bulk Mailings
Perfect for wedding invitations and large mailings with 4-pack.

No-Clog Spring-Valve Applicator
Highly praised for preventing messes, even if tipped over.
Key specs
- item form:Liquid
- size:4 Bottles
- color:Blue
- material:Envelopes & mailers
- special feature:Patented spill-proof top
9.6

Exceptional

Our Rating
4

Quality Park
Quality Park Dab-N-Seal Envelope Moistener with Adhesive, 50ML Bottle, 4 Pack (46071)

21% Off
Main highlights

Fast-Drying Adhesive Formula
Moistens and seals up to 1,500 envelopes per 50 mL bottle.

Ideal for Bulk Mailings
Perfect for wedding invitations and large mailings with 4-pack.

No-Clog Spring-Valve Applicator
Highly praised for preventing messes, even if tipped over.
Key specs
- item form:Liquid
- size:4 Bottles
- color:Blue
- material:Envelopes & mailers
- special feature:Patented spill-proof top
9.4

Excellent

Our Rating
5

Aimoh
Aimoh #10 Security Self Seal Envelopes – 100 Qty |No Window, EnveGuard, 4⅛ x 9½", White, 24 LB, 100 Count (34100)

22% Off
Main highlights

Windowless Front Panel for Privacy
These envelopes feature a windowless front panel, providing enhanced privacy and flexibility for addressing.

Ideal for Secure Mailing
Perfect for mailing confidential documents, checks, invoices, and statements with confidence and peace of mind.

Highly Praised Quick-Seal Closure
Customers appreciate the strong and reliable self-seal adhesive strip, ensuring a secure seal without the need for moisteners, glues, or tapes.
Key specs
- size:100 Ct.
- color:White
- shape:Rectangular
- closure:Self-Seal
- number of items:100
9.3

Excellent

Our Rating

9.9
Attachment

9.7
Security

9.3
materials Quality
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6

Aimoh
Aimoh #10 Security Self Seal Envelopes – 100 Qty |No Window, EnveGuard, 4⅛ x 9½", White, 24 LB, 100 Count (34100)

37% Off
Main highlights

Windowless Front Panel for Privacy
These envelopes feature a windowless front panel, providing enhanced privacy and flexibility for addressing.

Ideal for Secure Mailing
Perfect for mailing confidential documents, checks, invoices, and statements with confidence and peace of mind.

Highly Praised Quick-Seal Closure
Customers appreciate the strong and reliable self-seal adhesive strip, ensuring a secure seal without the need for moisteners, glues, or tapes.
Key specs
- size:100 Ct.
- color:White
- shape:Rectangular
- closure:Self-Seal
- number of items:100
9.2

Excellent

Our Rating

9.9
Attachment

9.7
Security

9.3
materials Quality
7

Columbian
Columbian #10 Security Envelopes, 500 Pack, Self Seal Envelopes for Home, School, and Business Mailings, No Window, 4-1/8 x 9-1/2 Inches, Durable 24 lb White Paper
Main highlights

Self Seal Convenience
Simple peel and press closure for hassle-free sealing.

Ideal for Confidential Documents
Perfect for small businesses, offices, and schools needing privacy.

Highly Praised Security Tint
Customers appreciate the strong security tint for privacy.
Key specs
- size:One Size
- color:White
- shape:Rectangular
- closure:Self-Seal
- number of items:500
9.1

Excellent

Our Rating
8

Columbian
Columbian #10 Security Envelopes, 500 Pack, Self Seal Envelopes for Home, School, and Business Mailings, No Window, 4-1/8 x 9-1/2 Inches, Durable 24 lb White Paper
Main highlights

Self Seal Convenience
Simple peel and press closure for hassle-free sealing.

Ideal for Confidential Documents
Perfect for small businesses, offices, and schools needing privacy.

Highly Praised Security Tint
Customers appreciate the strong security tint for privacy.
Key specs
- size:One Size
- color:White
- shape:Rectangular
- closure:Self-Seal
- number of items:500
9.0

Excellent

Our Rating
9

Amazon Basics
Amazon Basics 10 Security-Tinted Self-Seal Business Letter Envelopes, Peel & Seal Adhesive Closure, White, 500-Pack
Main highlights

Peel and Seal Convenience
Includes 500 - 10 envelopes made of 24-pound white woven paper with a peel-and-seal closure, ensuring no moisture is needed for sealing.

Ideal for Secure Mailing
Perfect for sending checks, invoices, or other confidential documents due to the interior security tint that prevents visibility of contents.

Commonly Praised Feature
Customers appreciate the high quality and excellent adhesive closure, noting the envelopes' durability, security, and overall great value for the price.
Key specs
- size:Peel & Seal
- color:Tint
- shape:Rectangular
- closure:Self-Seal
- number of items:500
8.9

Very Good

Our Rating

9.9
worth the money

9.9
materials Quality

9.7
Security
10

Amazon Basics
Amazon Basics 10 Security-Tinted Self-Seal Business Letter Envelopes, Peel & Seal Adhesive Closure, White, 500-Pack
Main highlights

Peel and Seal Convenience
Includes 500 - 10 envelopes made of 24-pound white woven paper with a peel-and-seal closure, ensuring no moisture is needed for sealing.

Ideal for Secure Mailing
Perfect for sending checks, invoices, or other confidential documents due to the interior security tint that prevents visibility of contents.

Commonly Praised Feature
Customers appreciate the high quality and excellent adhesive closure, noting the envelopes' durability, security, and overall great value for the price.
Key specs
- size:Peel & Seal
- color:Tint
- shape:Rectangular
- closure:Self-Seal
- number of items:500
8.8

Very Good

Our Rating

9.9
worth the money

9.9
materials Quality

9.7
Security

10 Best close envelopes of 2026

1

#10 Envelopes Letter Size Self Seal | 500 Business Mailing Security Peel and Sealing Envelope | 100% Tinted | no 10 White Windowless Legal Regular Plain Envelops Pack | 4-1/8 x 9-1/2 Inches | 24 LB

How do we rank?

How do we rank?

Analyzing top stores

2

#10 Envelopes Letter Size Self Seal | 500 Business Mailing Security Peel and Sealing Envelope | 100% Tinted | no 10 White Windowless Legal Regular Plain Envelops Pack | 4-1/8 x 9-1/2 Inches | 24 LB

3

Quality Park Dab-N-Seal Envelope Moistener with Adhesive, 50ML Bottle, 4 Pack (46071)

4

Quality Park Dab-N-Seal Envelope Moistener with Adhesive, 50ML Bottle, 4 Pack (46071)

5

Aimoh #10 Security Self Seal Envelopes – 100 Qty |No Window, EnveGuard, 4⅛ x 9½", White, 24 LB, 100 Count (34100)

9.9

9.7

9.3

6

Aimoh #10 Security Self Seal Envelopes – 100 Qty |No Window, EnveGuard, 4⅛ x 9½", White, 24 LB, 100 Count (34100)

9.9

9.7

9.3

7

Columbian #10 Security Envelopes, 500 Pack, Self Seal Envelopes for Home, School, and Business Mailings, No Window, 4-1/8 x 9-1/2 Inches, Durable 24 lb White Paper

8

Columbian #10 Security Envelopes, 500 Pack, Self Seal Envelopes for Home, School, and Business Mailings, No Window, 4-1/8 x 9-1/2 Inches, Durable 24 lb White Paper

9

Amazon Basics 10 Security-Tinted Self-Seal Business Letter Envelopes, Peel & Seal Adhesive Closure, White, 500-Pack

9.9

9.9

9.7

10

Amazon Basics 10 Security-Tinted Self-Seal Business Letter Envelopes, Peel & Seal Adhesive Closure, White, 500-Pack

9.9

9.9

9.7

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