Best Envelopescom Mailing Envelopes in 2026

100-Pack of 6 envelopes with Peel & Seal closure—no moisture needed

Ideal for home or office; securely send checks, invoices, or other confidential documents

Interior security tint keeps content private; windowless design

100-Pack of No.10-1/2 catalog envelopes

Durable 28-pound white woven paper for quality and strength

Easy-to-seal Peel and Seal closure—no moisture needed

Invitation envelopes; ideal for mailing computer-generated wedding, birthday, or other special event invites

Includes 100 blank A9 envelopes made of 24-pound white woven paper for reliable strength

Holds folded 8-1/2 x 11 inch sheets of paper

500 standard-size security-tinted #9 double window envelopes

Ideal for 8.5-by-11-inch computer-generated invoices and statements

Double windows 3/8-inch from the left to show sender info (2 inches from bottom) and recipient info (1/2 inch from bottom)

10 business letter envelopes with single left address window

Includes 500 10 envelopes made of 24-pound white woven paper for quality and strength

Interior security tint for privacy; securely send checks, invoices, or other confidential documents

Envelopes for keeping checks, statements, letter size documents, and more securely contained while in transit

Includes 500 10 business envelopes made of premium 24-pound white woven paper

Security tinted interior provides added document privacy

PACKAGE CONTAINS: 36pcs plastic envelopes in 11 colors (3 red, 3 yellow, 3 blue, 3 green, 3 white, 3 black, 3 sky blue, 3 purple, 4 Orange, 4 rose red, 4 transparent). Poly zip envelopes have a bag for labels, which makes it easy to distinguish documents, conduct topic induction and others what you want to assort.

PRODUCT SIZE: 33 * 24cm / 13 * 9.5inch, letter size / A4 size. Can meet your storage needs for a large number of files.

MATERIAL: Our Poly Zip Envelope is made of high quality PVC plastic. The zipper head is made of plastic material, which is very smooth to use and not easy to damage. It can protect the documents or articles stored in it from wrinkling or getting olg.

#10 size envelopes: 5 x 10 inches, 1 1/5" expansion increasing more storing space, can be easily fit the 20 pages that are tri-folded

The envelope is made of semi-transparent plastic, sturdy tear-resistant and waterproof, and you can find out the content inside with ease

Zipper closure is convenient for open and closed, also keep items inside secure and well organized

PACKAGE INCLUDES: 24 pcs A6 size poly zip envelopes. 10 colors, 2 red, 2 yellow, 2 blue, 2 green, 2 white, 2 black, 3 orange, 3 rose red, 3 purple, 3 sky blue.

PRODUCT QUALITY: These reusable envelopes are made of high-quality PVC material, the surface is smooth and transparent, you can directly check the contents and quickly view information. The zipper head is made of plastic, so the folders are with excellent sealing performance, completely waterproof and moisture-proof, wear-resistant and durable, and can bring you a good use experience anytime, anywhere.

PRODUCT SIZE: Each plastic zip envelope is 9.4 inches/24 cm long, 4.7 inches/12 cm wide, can accommodate A6 size documents.

12 PCS Vibrant Envelopes: Set of 12, 2 pcs for each color--Red, Blue, Purple, Green, Yellow, and White, vibrant & good-looking. 12.8 x 9.2 inches, great for A4 size files. A perfect option for sorting messy documents, storing paper material nicely, and organizing your work desk.

Label Pocket & 12 Cards: Each file bag has a pocket for labels, help identify and find the document you need shortly. 12 label cards provided, 3.5”x 2.1”, both sides are blank, each can be used to mark TWICE for different purpose.

File Collector & Protector: Multipurpose poly folders, help collect paper material or other little things, keep them in order, save space, also help protect things against water, scratch, friction, dust, etc., keep them away from curling up, damage, smear, and loss.

Bright Colour: Comes in 5 colours, 1 pcs for each colour, White, Blue, Green, Pink, Yellow. Different kind files in different colour, easy to find and collect.

High Quality: The A4 document wallet folders are made of high quality plastic, soft and heavy duty.

Large Capacity: Size: 33.5 x 23.5cm (13.2" x 9.2") Hold up to 150 sheets of A4 80g paper.

Package contains: you will receive 100 pieces poly zipper envelopes, quantity enough to use and hold many things you need to collect, such as envelope, important document, and more they fit A6 sheets, to help you sort more orderly

Nice quality: the poly zipper envelopes are made from quality primary PVC particle, tasteless and transparent; Sealed with zip, water resistant, sturdy and lightweight, easy to carry, keep your documents safe and sound in long term use

Product size: the poly zipper envelopes are about 9.2 x 4.7 inch/ 23.5 x 12 cm in size, 1.4 x 3 inch/ 3.5 x 7.5cm in business card pocket size on their surfaces, suitable for storing A6 size files and other items (thickness do not exceeded 3 cm)