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Best envelopes - June 2026

Last Updated - June 3, 2026

1
Best Choice

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Blue Summit Supplies

500 No. 8 Flip and Seal Double Window Security Check Envelopes - Designed for Quickbooks Printed Checks - Number 8 Size 3 5/8 Inch x 8 11/16 Inch

Blue Summit Supplies

$33.49

More Details
Main highlights
- Security Tint Privacy Pattern – For offices mailing checks and financial documents, these self sealing 24lb white wove paper envelopes include a confidential security tint pattern to reduce read-through, helping protect check amounts, memo lines, and account details during transit.
- QuickBooks Window Alignment – For businesses printing checks for payroll and vendor payments, these QuickBooks check envelopes self seal are made from 24 lb white wove paper and align with standard check or voucher layouts so addresses appear correctly in the windowed format, reducing reprints, adjustments, and mailing errors.
- Fast Flip Seal Closure Check Envelope – Designed for bookkeeping teams and offices that mail checks regularly, these #8 double window envelopes self seal use a flip-and-press adhesive closure on durable 24 lb white wove paper so users can close envelopes quickly without licking or peel strips, helping speed up pay and accounts payable tasks.
- Double Window Check Format – For accounting teams mailing business checks, these 24 lb white wove paper 2 window envelopes compatible for QuickBooks checks display only the necessary address fields through two windows while keeping the rest of the check concealed, helping prevent exposure of sensitive details during mailing.
- #8 Size For Business Checks – For small businesses and accounting teams running frequent check batches, these 3 5/8 x 8 11/16 #8 QuickBooks check envelopes are made from 24 lb white wove paper and come in a 500-pack to support high-volume mailing workflows with consistent fit and reliable processing.
$33.49
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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Amazon Basics

Amazon Basics #9 Security Tinted Double Window Envelopes for Invoices and Documents, Self-Seal, 3-7/8" x 8-7/8", White, 500-Pack

Amazon Basics

$29.39

More Details
Main highlights
- Measures 3-7/8 by 8-7/8 inches each
- Interior security tint keeps content private; securely send checks, invoices, or other confidential documents
- Double window allows sender and recipient addresses to show through
- 500-count pack of #9 security envelopes with Peel & Seal closure―no moisture needed
- 24-pound white wove paper for quality and strength; ideal for home or office
$29.39
3
Best Value

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Amazon Basics

Amazon Basics #10 Security-Tinted Self-Seal Business Envelopes for Documents, Privacy, Home & Office, White, 500-Pack

Amazon Basics

$20.99

More Details
Main highlights
- Product dimensions: 12.2 x 9.9 x 4.13 inch
- Peel-and-seal closure; no moisture needed
- Interior security tint for privacy; securely send checks, invoices, or other confidential documents
- Includes 500 - 10 envelopes made of 24-pound white woven paper; smooth surface works well for direct printing
- 10 business letter envelopes for home or office
$20.99
4

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Top Flight

Top Flight PSTF10NWT #10 Envelopes, Strip & Seal, Security Tinted, White Paper, 24 lb, 500 Count

Top Flight

$19.99

More Details
Main highlights
- Package Weight : 6.1 Lbs
- Package Quantity : 1
- Heavy 24Lb White Paper - Made In Usa
- Country Of Origin : United States
$19.99
5

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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

Splendoress

$26.95

More Details
Main highlights
- SELF SEAL ENVELOPE- Just peel and stick 4 1/8 in. x 9 1/2 in size envelop
- NO NEED TO LICK THE FLAP ANYMORE - Very convenient
- NDAA Section 889 Compliance Certfication
- LONG LASTING SUPPLY - 500 count per box
- HIGH QUALITY & BULK PRICING - 24lbs high quality envelopes at a fraction of the price
- CAN'T SEE THROUGH ENVELOPES - Security printing pattern on the inside prevents from seeing what inside. Windowless envelope
$26.95

Best envelopes - June 2026

500 No. 8 Flip and Seal Double Window Security Check Envelopes - Designed for Quickbooks Printed Checks - Number 8 Size 3 5/8 Inch x 8 11/16 Inch

Amazon Basics #9 Security Tinted Double Window Envelopes for Invoices and Documents, Self-Seal, 3-7/8" x 8-7/8", White, 500-Pack

Amazon Basics #10 Security-Tinted Self-Seal Business Envelopes for Documents, Privacy, Home & Office, White, 500-Pack

Top Flight PSTF10NWT #10 Envelopes, Strip & Seal, Security Tinted, White Paper, 24 lb, 500 Count

#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

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