The 9 Best personalized Security Envelopes (2023 reviews)

These envelopes are first class, easy to use and letters fit nicely in them. It allows a trifold 8.5x11 piece of paper to fit without additional folding. The peelable paper strip protects the adhesive from dust so your envelopes last longer in storage. They give good privacy and seal securely.

This is a good box of envelopes that you can use to mail anything of normal sized paper in. They envelope things like folded paper that one puts into them, and they seal. The self-stick part works great too and no more licking envelopes. It is easy to use, better than the gummed labels.

Why We Like This:

Self adhesion is a great plus and works like a charm
Perfect letter size, sturdiness/paper quality, adhesion
Perfect for personal or business mailing

Best For print: HERKKA personalized Security Envelope

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The herkka personalized security envelope is the best reliable envelope on the market today. These are high quality envelopes with super adhesion. It is designed with peel & seal closure—no moisture needed and a premium security tint to protect sensitive information and a super strong self-seal strip. The flap adhesive is strong and holds the envelope closed well. The adhesive is great and sheerness. It is easy to use and the peel and seal feature is an absolute time saver and mess saver.

These envelopes have reliable and convenient self-seal and good adhesion. Security printed on the inside prevents anyone from looking with a light bulb for what's within. They are also the perfect size business envelope and easy to write on.

Why We Like This:

Secure envelopes are secure and easy to close
Easy to use peal off and self stick close
Delivers what they promise

Best For Printer: Aimoh super Secure Seal

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Aimoh makes beautiful and great envelope with classic and smartly choosen materials. These envelopes flawlessly hold letters. It is manufactured from heavyweight extra white sturdy wove stock paper, combining a professional security tint pattern and smooth finish. It also has great adhesion, so you don't need to do anything else to seal your letter. It is also great for its value.

The adhesive is strong. It has design for small usage of envelopes. The self-sealing sticky is wider, too. It is also used for letter writing. They are a tad bigger than the dollar store variety, just enough so that material slides in and out easily.

Why We Like This:

Good paper and nice peel and stick closure
Peel off adhesive to seal envelope, secure coverage, works well
Nice heavy duty bright white envelopes

Best For Mailing Checks: spark ink personalized Security Envelope

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These white no-lick self-seal envelopes are used by businesses to mail documents with sensitive materials. The full-block, dark navy security tint, provides exceptional privacy for your sensitive documents. The adhesive is strong and sticks very well, and these envelopes also have security tamper evident slits so if anyone attempts to open it the receiver would know.

The envelopes come in a sturdy box that makes storage easy and accessible. The adhesion is quality and they are, indeed, NOT see-through. The envelopes are heavy weight and very good for mailing checks out without seeing through them. The envelopes come in a sturdy box that make storage easy and accessible. They have a good thickness and the self-adhesive sticky is excellent and more than sticky.

Why We Like This:

You can heat most any pressure sensitive adhesive to weaken it
Great security mailing envelopes with self-seal
Nice quality envelopes with added sealing security

Best For money: Prime Business Checks personalized Security Envelope

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The prime business checks personalized security envelope might be a relatively new release, but it's still nothing short of impressive this year. It is designed for business checks, quickbooks, laser checks and security tinted self adhesive peel and seal white size 3 58" x 8 1116" (checks will not move) 24 lb 500 per box. The window placement matches up perfectly without making changes. It is perfectly and the windows line up with the printed addresses. The consistency of the paper and the peel & seal strip is always spot on. The easy remove seal is very strong. The box is lightweight cardboard. The adhesive is great.

Why We Like This:

Good brand reputation
New and hot release

Best With logo: Aimoh personalized Security Envelope

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If you’re looking for the perfect security envelopes with professional security tint, and strong, quick seal strips, in a great value 100 envelope supply, perfect for everyday use, #10 security tint envelopes are the perfect choice. It comes with each pack of envelopes, each envelope measures 4-1/8 x 9-1/2 inches. The Super strong quick seal adhesive strip creates a tough seal across the width of the envelope.

These self sealing envelopes make mailing much easier. It is compatible with most inkjet and laser printers for quick and easy addressing. The envelopes are very professional looking. The envelopes are heavy weight and the adhesive makes a positive seal every time.

Why We Like This:

Designed with a security tint pattern to protect personal details and your sensitive data
Ideal for mailing invoices, statements and other standard business and legal documents
Envelopes for every day use, letters, invoices, documents and much more
Large, windowless design measuring 4-1/8 x 9-1/2 inches

Best With Window: Alliance Business products personalized Security Envelope

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If you often find yourself scrambling for convenient and suitable envelope, alliance business products personalized security envelope is your end point. This is a standard window envelope.

Why We Like This: