Top 10 Tyvek Envelopes 9 1/2 x 12 1/2 – Box Mailers

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1. Quality Park

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White Box of 100, 9 1/2 x 12 1/2, Survivor R1520 Tyvek Mailer

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Quality Park #ad - White tyvek envelope with Flap-Stik closure. Puncture-resistant, tear-resistant, moisture-resistant and chemical-resistant. Size: 9-1/2" x 12-1/2". 100 / box.
BrandQuality Park #ad
Manufacturer0 #ad
Height2.8 Inches
Length13.3 Inches
Weight2.55 Pounds
Width10.4 Inches
Part NumberQUAR1520
ModelQUAR1520

2. Quality Park

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Survivor R1530 Tyvek USPS First Class Mailer, 9 1/2 x 12 1/2, White Box of 100

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Quality Park #ad - Puncture-resistant, tear-resistant, moisture-resistant and chemical-resistant. White tyvek envelope with Flap-Stick closure and first-class border. Patented release strip makes envelopes easy to open.
BrandQuality Park #ad
Manufacturer0 #ad
Height2.8 Inches
Length13.3 Inches
Weight2.55 Pounds
Width10.4 Inches
Part NumberQUAR1530
ModelQUAR1530

3. ALL-STATE LEGAL

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Pull & Close, 14 lb. First Class Border, Open End, 100 per Box, ALL-STATE LEGAL Tyvek Envelope, Catalog Envelope, 9 1/2" x 12 1/2"

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ALL-STATE LEGAL #ad - 9 1/2" x 12 1/2", 100 per box. Open end closure. First class border ensures priority attention. Lightweight white Tyvek material. Offers superior moisture, burst and tear resistant protection. Pull and close - simply peel off release strip and press down for a quick, secure seal.
BrandALL-STATE LEGAL #ad
ManufacturerALL-STATE LEGAL #ad
Part Number05014

4. Ship Now Supply

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White Pack of 100, 9.5" Width, 9 1/2" x 12 1/2", 12.5" Length, Ship Now Supply SNTYF091212WH Tyvek Flat Envelopes

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Ship Now Supply #ad - Available in plain, first class and air mail printed borders. Constructed from 14 lb. Olefin. Ten times stronger than paper envelopes. Feature self-seal closure. Tyvek envelopes provide superior puncture, tear and moisture protection.
BrandShip Now Supply #ad
ManufacturerBox Partners #ad
Part NumberSNTYF091212WH
ModelSNTYF091212WH

5. Partners Brand

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White Pack of 100, Partners Brand PTYF091212WH Tyvek Flat Envelopes, 9 1/2" x 12 1/2"

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Partners Brand #ad - Available in plain, first Class and air mail Printed borders. Constructed from 14 lb. Olefin. Feature self-seal closure. 100 per case. Ten times stronger than paper envelopes.
BrandPartners Brand #ad
ManufacturerPartners Brand #ad
Part NumberPTYF091212WH
ModelPTYF091212WH

6. Amazon Basics

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9x12 Inch, Peel & Seal, Amazon Basics Catalog Mailing Envelopes, 100-Pack, White

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Amazon Basics #ad - 100-pack of #10-1/2 catalog envelopes. Ideal for mailing catalogs, booklets, brochures, and multi-page documents. Easy-to-seal peel & Seal closure—no moisture needed. Measures 9 by 12 inches each. Durable 28-pound white woven paper for quality and strength.
BrandAmazon Basics #ad
ManufacturerAmazon Basics #ad
Part NumberAMZP15
ModelAMZP15

7. Aimoh

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

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Aimoh #ad - 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.

For 8. 5x11 documents; large 9x12 size and strong quick-seal closure security tinted envelopes, thicker, perfect for photos, catalogs, larger documents and other business mailings.99x12 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.

100 9 x 12 catalog envelopes in every pack for a long lasting supply, easy bulk mailing and everyday business correspondence! 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.
BrandAimoh #ad
ManufacturerAimoh #ad
Height2.5 Inches
Length9 Inches
Weight4.06 Pounds
Width12 Inches
Part NumberFBA_38100
ModelFBA_38100

8. Amazon Basics

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Amazon Basics Catalog Mailing Envelopes, 9x12 Inch, Brown Kraft, Peel & Seal, 100-Pack, AMZP13

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Amazon Basics #ad - Easy-to-seal peel & Seal closure—no moisture needed. Ideal for mailing catalogs, booklets, brochures, and multi-page documents. Measures 9 by 12 inches each. Durable 28-pound brown kraft material provides privacy and strength. 100-pack of 9 x 12 inch catalog envelopes.
BrandAmazon Basics #ad
ManufacturerAmazon Basics #ad
Part NumberAMZP13
ModelAMZP13

9. Blue Summit Supplies

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Securely Holds up to 60 Sheets of Paper with Strong Peel and Seal Flap 100 Envelopes, Designed for Secure Mailing, 100 9 X 12 Self Seal Security Catalog Envelopes

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Blue Summit Supplies #ad - Safe for sensitive documents like tax, legal, and financial documents. Great for storing receipts, magazines, monthly financials, tax returns, reports and more.

Provides complete security: your documents are safe from others during transit. Perfect size for standard 8. 5'' x 11'' letter paper, wide opening saves times when stuffing up to 60 sheets of letter paper securely. Just peel and seal to create a strong lasting seal: No need to worry about your contents failing out during transit even when shipping hefty shipments like 60 sheets of paper or magazines. Securely holds hefty files during transit due to it sturdy construction and thick 28 LB White Wove Paper. Allows for organized storage of personal and company documents due to its large size and Security Tint.
BrandBlue Summit Supplies #ad
ManufacturerBlue Summit Supplies #ad
Weight3.97 Pounds
Part NumberBSS-92588-010

10. Mead

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Brown Kraft, Mead Clasp Envelopes, 20 per Box 76020, Office Pak, 9" x 12"

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Mead #ad - Made in United States. Heavyweight envelopes feature a clasp closure, in an Office Pak for larger quantity. Brown Kraft material. 20 envelopes per box. 9" x 12" size.
BrandMead #ad
ManufacturerACCO Brands #ad
Height14.45 Inches
Length0.88 Inches
Weight0.65 Pounds
Width9 Inches
Part Number76020
Model76020
Warrantykkk