Best Security Envelopes

Our Top 20 Best Security Envelopes list was created by The Man Post founder, Paul Crouch, to help users find products that are useful, affordable, and available. The list is updated every month.

Best Security Envelopes

#10 Security Tinted Self-Seal Envelopes - No Window - EnveGuard, Size 4-1/8 X 9-1/2 Inches - White - 24 LB - 100 Count (34100)

$15.99
$9.99
 in stock
Amazon.com
as of May 3, 2022 10:05 pm

Features

  • ✉️ 100 ENVELOPE PACK; these envelopes are manufactured with a WINDOW-LESS front panel for the perfect choice for small businesses, home offices and everyday use, #10 Security Envelopes are provided in a 100-envelope pack
  • ✉️ SUPER SECURITY TINT PATTERN; #10 envelopes designed with a secure, security tint-pattern to protect contents and sensitive information, perfect for ultra-secure mailing
  • ✉️ QUICK-SEAL CLOSURE; our #10 envelopes are designed with an ultra strong SELF-SEAL adhesive strip to create a full, super secure seal across each envelope's width that won't easily open or tear, ideal for mailing for any letter sized and larger documents without splitting
  • ✉️ LASER AND INKJET PRINTER COMPATIBLE; premium construction measuring 4-1/8 x 9-1/2 inches, fully compatible with most inkjet and laser printers for quick and easy addressing! Click the Orange Button to order now
  • ✉️ ENVEGUARD TECHNOLOGY; in today's world where our health, privacy and security is so much threatened, the team of engineers and developers at Aimoh have researched and developed the EnveGuard Technology and Approval systems, at Aimoh we approve only the highest quality products, produced from the best and safest material on earth.

Mead Security Envelopes Self Seal #10 - Windowless Mailing Envelopes - 4 1/8 x 9.5 inch - 500 Pack

$24.97  in stock
2 new from $24.97
Free shipping
Amazon.com
as of May 3, 2022 10:05 pm

Features

  • SEAL IN SECONDS - These easy close self stick envelopes keep your mail secure and sealed conveniently. There's no need to lick, glue, or tape, These regular Mead envelopes peel and seal with secure adhesive.
  • SECURED ENVELOPES - Make it impossible for prying eyes to read your sensitive information. With its thick and opaque material, these blank standard #10 envelopes keep contents completely hidden from outsiders.
  • WINDOWLESS DESIGN - Best for legal and business mailing, these plain White letter envelopes are tinted without any see-through panels for privacy. The solid surface makes it easy to print labels and addresses.
  • GREAT VALUE FOR MONEY - Make sure you have a reliable and long-lasting supply of this office essential. Large bulk box comes with 500 number 10 envelopes size measures 4 1/8 x 9.5”
  • MADE WITH THE MEAD SEAL OF QUALITY - Protect your mail without compromising quality. These self sealing envelopes are created by Mead, a brand known for premium paper products and stationery.

Mead No.10 Envelopes, Security, Press-it Seal-it, 4-1/8" X 9-1/2", White, 45 Per Box (75026)

$4.99  in stock
17 new from $3.56
Free shipping
Amazon.com
as of May 3, 2022 10:05 pm

Features

  • Mead press it seal it number 10 security envelopes, 45 envelopes per box
  • White envelopes with self adhesive seal, Security lining for privacy
  • Size: 4 to 1/8 inches x 9 to 1/2 inches

#10 Security Self-Seal Envelopes, Windowless Design, Premium Security Tint Pattern, Ultra Strong Quick-Seal Closure - EnveGuard - Size 4-1/8 x 9-1/2 Inches - White - 24 LB - 500 Count (34010)

$39.99
$27.99
 in stock
1 used from $24.19
Free shipping
Amazon.com
as of May 3, 2022 10:05 pm

Features

  • #10 SECURITY TINTED SELF SEAL ENVELOPES; forget cheap envelopes that easily split and aren't suitable for secure mailing, our #10 envelopes are designed with a premium security tint to protect sensitive information and a super strong SELF-SEAL strip, perfect for larger documents
  • PREMIUM SECURITY TINTED PATTERN; our #10 envelopes are designed with a premium security printed design to protect contents and sensitive information, perfect for secure business and legal mailing while protecting sensitive information
  • WINDOWLESS DESIGN; envelopes ideal for standard business & legal documents and sensitive correspondence, manufactured with a windowless front panel for easy printing, labeling or hand-addressing, perfect for quick, mass business mailings
  • QUICK-SEAL CLOSURE; our #10 envelopes are designed with an ultra strong SELF-SEAL adhesive strip to create a full, super secure seal across each envelope's width that won't easily open or tear, ideal for mailing larger documents without splitting
  • LONG LASTING SUPPLY; large sized envelopes and 500 envelopes in every pack for a long lasting supply, perfect for everyday business correspondence and large mailing tasks!

Quality Park #10 Self-Seal Security Envelopes, Security Tint and Pattern, Redi-Strip Closure, 24-lb White Wove, 4-1/8" x 9-1/2", 100/Box (QUA69117)

$8.53  in stock
24 new from $7.00
Free shipping
Amazon.com
as of May 3, 2022 10:05 pm

Features

  • SAVE TIME WITH SELF-STICK: Quality Park 10 Security Envelopes have a strong peel and stick closure that helps you fly through mailings in record time
  • ENHANCED SECURITY: Offer the protection clients deserve; a security tint makes envelopes hard to see through; a security pattern scrambles the appearance of text
  • LESS YUCK: We promise you won't miss licking envelopes or crumbly, drippy sponges; complete your mailings, no accessories required
  • STORE MORE, LONGER: Redi-Strip envelopes have a longer shelf-life thanks to the peelable strip that protects your adhesive from dust
  • AN EXCELLENT VALUE: Bright White 24-lb paper makes an impression for business mailings and personal correspondence; get 100 4-1/8 x 9-1/2 inch envelopes

Mead #6-3/4 Security Envelopes, 3-5/8" x 6-1/2", Confidential, White, 80 per Box (75212)

$4.19  in stock
20 new from $2.69
Free shipping
Amazon.com
as of May 3, 2022 10:05 pm

Features

  • White envelopes with security lining ensure privacy
  • 6-3/4 size envelopes measure 3-5/8" x 6-1/2"
  • 80 envelopes per box. Customizable: No
  • 20 lb. paper.
  • Made in United States

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

$26.32  in stock
2 used from $25.00
Free shipping
Amazon.com
as of May 3, 2022 10:05 pm

Features

  • 10 business letter envelopes for home or office
  • Includes 500 - 10 envelopes made of 24-pound white woven paper; smooth surface works well for direct printing
  • Interior security tint for privacy; securely send checks, invoices, or other confidential documents
  • Peel-and-seal closure; no moisture needed
  • Product dimensions: 4-1/8 x 9-1/2 inches

500 No. 10 Security Envelopes - Gummed Flap - Tamper Proof Design - Security Tinted with Printer Friendly Design - Number 10 Size 4 1/8 x 9 ½ Inch - Pack of 500

$23.99  in stock
4 used from $18.00
Free shipping
Amazon.com
as of May 3, 2022 10:05 pm

Features

  • Perfect for secure everyday home and business mailing. Our Security #10 Envelopes perfectly fit standard 8.5'' x 11'' paper sizes and other large documents. Easily fits invoices, letters, checks, and more.
  • Provides complete mail security. No need to worry about others seeing your documents, our dark black security tint completely hides you mail.
  • Cost saving Gummed seal. Save money and time sealing our strong gummed seal envelopes. No need for tape or glue sticks.
  • Easily print hundreds of envelopes with our low profile envelope design. Our Printer friendly envelopes with smooth thick paper saves you time and frustration while printing without having to worry about jamming. These envelopes are designed for both Laser and Inkjet Printers.
  • Prevent others from tampering with your mail with our tamper proof design with gummed seal that penetrates the paper. Once the envelope is sealed, the envelopes has to be ripped to get inside.

#10 Single Left Window Self-Seal Security Tinted Envelopes, Size 4-1/8 X 9-1/2 Inches, 24 LB - 500 Count (35210)

$39.99
$30.99
 in stock
Amazon.com
as of May 3, 2022 10:05 pm

Features

  • #10 SINGLE WINDOW SECURITY ENVELOPES; forget cheap, thin envelopes that allow contents to be easily read, our #10 Security Envelopes are premium quality, ultra secure envelopes suitable for everyday business and legal mailing while protecting sensitive contents and information
  • ULTRA STRONG QUICK SEAL; manufactured with ultra strong, quick seal adhesive, creating a super strong seal across the width of the envelope for a strong seal that won’t easily tear, perfect for mailing larger, thicker documents
  • EASY READ SINGLE WINDOW; perfect for bulk mailing, each envelope has a premium, extra large, easy read 4-1/2 X 1-1/8 poly-window, positioned 7/8" from the left and 1/2" from the bottom of the envelope, perfect for displaying addresses or business information, making slow printing and hand addressing a thing of the past
  • SECURITY TINT PATTERN; mailing secure documents? Our #10 Security Envelopes are designed with a security wave pattern on the inside to protect contents, data and numbers from being easily read, unlike other cheap envelopes
  • LONG LASTING SUPPLY; ideal for everyday business use, each box provides 500 envelopes for a long lasting supply, each measuring 4-1/8 x 9-1/2 inches, perfect for invoices, statements and many more business uses! Click the Orange Button to order now

500 Self Seal Security Mailing Envelopes - #10 White Letter Businesses Envelopes -500 Peel and Seal Tinted Windowless # 10 Envelope - Printer Friendly - Self Stick Bulk Envelops

$25.95  in stock
1 used from $25.60
Free shipping
Amazon.com
as of May 3, 2022 10:05 pm

Features

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

Amazon Basics #10 Security Tinted Business Envelopes, Moisture Sealed, 4 1/8-Inch x 9 1/2 Inch - Pack of 500

$16.39  in stock
Amazon.com
as of May 3, 2022 10:05 pm

Features

  • 500 envelopes for business or personal use; security tinted interior for added document privacy
  • Moisture-sealed v-flap design; made of premium 24-pound white woven paper
  • Securely contains business checks, folded letter size documents, resumes or personal letters
  • Dimensions: each envelope measures 4-1/8 by 9-1/2 inches (HxL)

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

$30.99  in stock
Amazon.com
as of May 3, 2022 10:05 pm

Features

  • Perfectly fits QuickBooks Checks, or other computer printed checks: checks will slide in easier with a slightly wider design than a standard 8 5/8 envelope
  • Checks amounts and memos will not be visible: Only addresses will show through our unique double window design with no need to change QuickBooks settings
  • Provides complete check security: your checks will be hidden with our security tint design
  • Just Flip Flap and Seal to create a strong lasting seal: Our self seal design is quick and easy and is guaranteed to stay sealed
  • Maintains professional look and feel throughout transit with our durable 24 LB white wove envelope paper

Quality Park #6 3/4 Security-Tinted Envelopes with Peel & Seal, 100-Pack, White – QUA10417

$7.14
$6.47
 in stock
4 new from $4.80
Free shipping
Amazon.com
as of May 3, 2022 10:05 pm

Features

  • SAVE TIME WITH SELF-STICK: Quality Park #6 3/4 Security Envelopes have a strong peel & stick closure that helps you fly through mailings in record time
  • ENHANCED SECURITY: Offer the protection clients deserve & protect yourself from liability; a security tint makes envelopes hard to see through; a security pattern scrambles the appearance of text
  • LESS YUCK: We promise you won't miss licking envelopes or crumbly, drippy sponges; complete your mailings, no accessories required
  • STORE MORE, LONGER: Reid-Strip envelopes have a longer shelf-life thanks to the peel able strip that protects your adhesive from dust
  • AN EXCELLENT VALUE: Bright White 24-lb paper makes an impression for business mailings and personal correspondence; get 100 3-5/8 x 6-1/2 inch envelopes

500#8 Double Window Self Seal Security Envelopes - for Business Checks, QuickBooks & Quicken Checks, Size 3 5/8 x 8 11/16 Inches - Checks Fit Perfectly - Not for Invoices, 500 Count(30180)

$29.95  in stock
1 used from $27.74
Free shipping
Amazon.com
as of May 3, 2022 10:05 pm

Features

  • ✉️ PREMIUM SECURITY TINT CHECK ENVELOPES: Ultra Secure security tint pattern - Double Window Security Tinted Check Envelopes
  • ✉️ PERFECT SECURE DESIGN: Measures Perfectly 3 5/8 inch x 8 11/16 inch to prevent checks from sliding and moving unlike others on the market, securing sensitive information to remain hidden even through the two windows
  • ✉️ QUICK-SEAL SELF SEAL STRIP: Aimoh’s Double Window Security Tinted Self Seal Check Envelopes uses a premium adhesive peel and seal designed strip to create a strong, secure self-sealing seal
  • ✉️ DUAL WINDOW CUSTOM DESIGNED FOR MAILING BUSINESS CHECKS: Top Window height is 7/8 inch X 3-1/2 inches wide and is positioned 3/8 inch from the left and 2-3/8 inch from the bottom, Bottom Window height is 7/8 inch X 3-1/2 inch wide and is positioned 7/8 inches from the left and 3/4 inches from the bottom
  • ✉️ FIVE HUNDRED COUNT: each box contains a long lasting Five Hundred envelope supply, ideal for business and home office use

500#10 Single Left Window SELF Seal Security Envelopes, Designed for QuickBooks Invoices & Business Statements, Computer Printed Checks Peel and Seal Flap Number 10 Size 4-1/8 x 9-1/2 Inches, 24 LB

$27.99  in stock
Amazon.com
as of May 3, 2022 10:05 pm

Features

  • #10 SINGLE WINDOW SECURITY ENVELOPES: Our #10 Security Envelopes are designed with SELF-SEAL strip—no moisture needed and a premium security tint, to protect sensitive data and information, perfect for secure business and legal mailing, invoices, or other confidential documents.
  • EASY READ SINGLE WINDOW: Thin security of single window envelopes makes the contents easily to read, create a professional looking, perfect for displaying recipient addresses or business information on the single window.
  • PREMIUM SECURITY TINTED PATTERN: #10 Security envelopes are designed with a premium security printed design to provide guaranteed privacy for your legal or business mail, offer the protection contents and sensitive information, a security tint makes envelopes hard to see through that ensures upmost privacy.
  • ULTRA STRONG EASY SEAL: #10 envelopes are manufactured with ultra SELF-SEAL adhesive strip to create a full, super secure seal across each envelope's width that won't easily open or tear, ideal for mailing larger documents without splitting, is guaranteed to stay sealed with no need for tape or glue sticks.
  • LONG LASTING SUPPLY:  Each box has 500 envelopes which can meet a long lasting supply, ideal for mass mailing of everyday business tasks! Our envelopes with smooth thick paper , it’s fully compatible with most ink jet and laser printers, can print quick and easily without worry about paper jams . Click the Orange Button to order now.

Amazon Basics #9 Envelopes with Peel & Seal, Double Window, Security Tinted, 500-Pack

$22.04  in stock
Amazon.com
as of May 3, 2022 10:05 pm

Features

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

500 No. 10 Self Seal Security Envelopes - 10 Envelopes Self Seal Designed for Secure Mailing - Security Tinted with Printer Friendly Design - Number 10 Size 4 1/8 x 9 ½ Inch - Pack of 500

$26.99  in stock
Amazon.com
as of May 3, 2022 10:05 pm

Features

  • Perfect for secure everyday home and business mailing. Our Security #10 Windowless Envelopes perfectly fit standard 8.5’’ x 11’’ paper sizes and other large documents. Easily fits invoices, letters, checks, and more.
  • Provides complete mail security. No need to worry about others seeing your documents, our dark black security tint completely hides you mail.
  • Just peel and seal to create a strong lasting seal without licking or moistening. Our self seal design is quick and easy and is guaranteed to stay sealed with no need for tape or glue sticks.
  • Easily print hundreds of envelopes with our low profile envelope design. Our Printer friendly envelopes with smooth thick paper saves you time and frustration while printing without having to worry about jamming. These envelopes are designed for both Laser and Inkjet Printers.
  • Maintains professional look and feel throughout transit with our durable 24 LB white wove envelope paper

100 9 x 12 SELF Seal Security White Catalog Envelopes - 28lb - Security Tinted, Ultra Strong Quick-Seal, 9x12 inch (38100)

$19.98  in stock
1 used from $18.79
Free shipping
Amazon.com
as of May 3, 2022 10:05 pm

Features

  • 9X12 CATALOG ENVELOPES; Aimoh’s White 9x12 Security Envelopes combine a professional security tint pattern, large size for business documents and premium quality for the best 9x12 envelopes on the market
  • SECURITY TINT PATTERN; ideal for secure business mailing and sensitive correspondence, each 9x12 envelope contains a super secure, security tint pattern to protect contents, information and data when mailing
  • FOR 8.5X11 DOCUMENTS; large 9x12 size and strong QUICK-SEAL closure security tinted envelopes, perfect for photos, catalogs, thicker, larger documents and other business mailings
  • WHITE 28LB STOCK; perfect for everyday business use, Aimoh’s 9x12 envelopes are designed with an ultra strong SELF-SEAL adhesive strip to create a full, super secure seal across each envelope's width that won't easily open or tear and use high quality, white 28lb stock for a professional finish
  • 100 9 X 12 Catalog Envelopes in every pack for a long lasting supply, easy bulk mailing and everyday business correspondence!

Similar Posts

Leave a Reply

Your email address will not be published.