The 9 Best custom Security Envelopes (2023 reviews)

Herkka line of envelope come in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. 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. The strip over the adhesion comes off cleanly and is not full of static, so it's easy to discard. These are self seal with a tear off strip. The security tint is excellent and the self-sealing feature works great. They hold together well through the printer and also through the mail process. These are sturdy enough to work in printers.

Why We Like This:

Makes sending letters easy without licking the envelopes
Nice quality, easy to peel and stick
New and hot release

Best For Printer: Horchen custom Security Envelope

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The horchen custom security envelope might be a relatively new release, but it's still nothing short of impressive this year, thanks to multiple price cuts and added new features over the past few months. These are thick and well-made, and work extremely well for privacy. They are stronger than most ordinary envelopes. It is designed to be self-sealing, no need to pass a wetting agent or lick seal, just peel off the adhesive strip, press and seal. The finish of the envelope and thickness of the paper they are made from feel more ideal for invitations or personal letters than office mailing.

They are made from good quality paper stock and are put together very well with no seams coming loose. It is easy to write on, the print pattern on the inner lining effectively obscures checks within, and the adhesive strip works perfectly. These come in a nice box and are sealed in plastic to keep them dry and clean.

Why We Like This:

Higher quality than typical envelopes, much thicker
Peek proof and a good weight
Ample size, covers contents completely, good quality and adhesion
Nice quality with sticky adhesive pull tab

Best For money: Prime Business Checks custom Security Envelope

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If you often find yourself scrambling for appropriate and satisfactory envelope, prime business checks custom security envelope should be your first option for buying. 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. It is great for those using laser printed checks in quickbooks.

It is designed to fit quickbooks laser checks or any computer business checks, these business envelopes fit checks perfectly, with dual windows displaying essential information without leaking out sensitive details. The self seal sticks very well and the envelopes fit the checks perfectly. They are perfect size and they are so much better than licking the envelope. The box is lightweight cardboard.

Why We Like This:

Perfect for quickbooks checks strong self seal
Even glue and easy to peel
New and hot release

Best For Your timeline: Quality Park custom Security Envelope

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If you often find yourself confused about convenient and suitable envelope, quality park custom security envelope should be your first option for buying. Redi-strip envelopes increase efficiency with removable strips and adhesives that seal without moisture—simply peel and press. They fit the quick books online checks quite nicely. It is made of 24 lb white wove paper with professional side seams. It measures 3-5/8" x 8-5/8 to add to that design for easy insertion.

These are the best envelopes, easy to seal with no mess and no sticking together. It is perfect for mailing or hand delivering checks. These work well and are much more cost effective.

Why We Like This:

Well made security envelope perfect fit
Delivers what they promise

Best With logo: Aimoh custom 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. The Super strong quick seal adhesive strip creates a tough seal across the width of the envelope. The tear strip always rips and the area where there is no adhesive is greater than the Amazon basics envelope.

The finished envelopes are beautiful. The super strong quick seal adhesive strip creates a tough seal across the width of the envelope. The adhesive is strong. It comes with each pack of envelopes, each envelope measures 4-1/8 x 9-1/2 inches. The envelopes are very professional looking.

Why We Like This:

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

Best For Mail: discount Envelopes Security Tinted Envelope

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The discount envelopes security tinted envelope should be able to handle its purpose and duties with ease.

Why We Like This:

Custom color printed with your logo and return address
Good brand reputation

Best With Window: Alliance Business products custom Security Envelope

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The alliance business products custom security envelope's high-end materials makes sure that it ages well with use. This is a standard window envelope. The window itself is 1 1/8" high and 4 1/2" wide.

Why We Like This: