Best Heat resistant Mailing Envelopes

Clasp Envelopes – 10x13 Inch Brown Kraft Catalog Envelopes - 30 Pack - with Clasp Closure & Gummed Seal – 28lb Heavyweight Paper Envelopes for Home, Office, Business, Legal or School.

  • HEAVY DUTY ENVELOPES 10 x 13 : These professional-looking multipurpose envelopes feature a dual-purpose seal that allows multiple uses..
  • MADE IN USA, HEAVY DUTY PAPER : Extra strong, durable 28lb standard brown kraft envelopes proudly made right here in the united states provides confidential protection & exceptional rip, tear & puncture resistance - thank you for supporting american manufacturing!.
  • DOUBLE SEAL DESIGN : Offers reliable security for personal & professional mailing.
  • sturdy metal dual prong clasps & gummed seals w/ tough adhesive glue..
  • CATALOG ORIENTATION : Classic open-end style enables fast, convenient stuffing for legal letter, pamphlet, coupon, magazine & other common mailers..
  • SAFE FOR STORAGE : Ideal 10 x 13 size is perfect for both mailing & storing important paperwork, craft projects, stamps, dies & more.
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Metronic Poly Mailers 12x15.5 100 Pack Large Shipping Bags,Strong Adhesive Mailing Bags, Waterproof and Tear-Proof Multipurpose Envelopes for Clothing, Small Business,Boutique, Postal Bags Sky Blue

  • Fashionable Colorful Poly mailers- With trendy colors, these shipping bags are sure to make your package stand out and leave a lasting impression on consumers. These chic shipping mailers are smooth to the touch, measuring 12x15.5 inches, and a pack of 100 mails..
  • Sturdy & Durable Construction- Our plastic mailing envelopes are made with premium-grade virgin Polyethylene plastic which is tear-resistant, puncture-resistant, and waterproof. And every mailer is equipped with tamper-proof strong self-sealing adhesive strips. You can rely on our postal bags to withstand various factors and ensure that your package is safe before it reaches its destination..
  • Convenient & Economical- The packaging bags can be sealed within a few seconds by peeling and exposing the glue, without the need for packing tape and a pulse sealing machine. Plastic custom mailing bags are a great alternative to bulky and expensive shipping boxes. Mailing envelopes are lightweight and space-saving, which can help you save on postage and shipping costs..
  • Widely Use- Multipurpose envelopes are great for shipping light and less fragile products, such as clothing, books, jewelry, accessories, etc.
  • professional packing to protect your item. Perfect for online retailers, clothing boutiques,....
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Metronic Poly Mailers 12x15.5 100 Pack Large Shipping Bags,Strong Adhesive Mailing Bags, Waterproof and Tear-Proof Multipurpose Envelopes for Clothing, Small Business,Boutique, Postal Bags Peach Pink

  • Fashionable Colorful Poly mailers- With trendy colors, these shipping bags are sure to make your package stand out and leave a lasting impression on consumers. These chic shipping mailers are smooth to the touch, measuring 12x15.5 inches, and a pack of 100 mails..
  • Sturdy & Durable Construction- Our plastic mailing envelopes are made with premium-grade virgin Polyethylene plastic which is tear-resistant, puncture-resistant, and waterproof. And every mailer is equipped with tamper-proof strong self-sealing adhesive strips. You can rely on our postal bags to withstand various factors and ensure that your package is safe before it reaches its destination..
  • Convenient & Economical- The packaging bags can be sealed within a few seconds by peeling and exposing the glue, without the need for packing tape and a pulse sealing machine. Plastic custom mailing bags are a great alternative to bulky and expensive shipping boxes. Mailing envelopes are lightweight and space-saving, which can help you save on postage and shipping costs..
  • Widely Use- Multipurpose envelopes are great for shipping light and less fragile products, such as clothing, books, jewelry, accessories, etc.
  • professional packing to protect your item. Perfect for online retailers, clothing boutiques,....
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120 Pack Colored Envelopes #10 for Business, Office, Letters, Standard Mailing

  • Colored Business Envelopes: Save time and money with this set of #10 envelopes for mailing letters, documents, checks, thank you notes, greeting cards, invitations, announcements, cards, and photos.
  • For All Occasions: Use stickers, markers, and labels to customize these business size envelopes for any corporate event, office party, kids birthday party, wedding, banquet, bridal shower, baby shower.
  • High Quality: The flap envelopes are made with high-quality, easy to write on paper with a glue seal for convenient and easy closure.
  • Multiple Uses: Great for mailing holiday cards, greeting cards, invitations, announcements, cards, photos, letters, statements, money, personal mail and direct mail..
  • Dimensions: Each #10 envelope measures 9.5 x 4.1 inches.
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Rigid Mailing Envelopes, Kraft Paper Stay Flat Mailers (6x8 In, 100 Pack)

  • Mailing Envelopes: Protect valuable art prints, photos, CDs, books, certificates, and important documents this set of kraft paper rigid mailing envelopes.
  • use stamps, labels, and colorful ink to personalize the self adhesive envelopes.
  • Self-Adhesive Seal: These bulk envelope mailers have an adhesive strip at the top to ensure contents are secure during transit, simply peel and seal.
  • Reliable Quality: Our kraft paper bulk mail envelopes reduces the cost of shipping without sacrificing protection.
  • the tear strip tab at the top allows for quick and convenient opening.
  • The Perfect Size: Each mail envelope measures 6x8 inches.
  • perfectly sized for gift cards, posters, and calendars.
  • What’s Included: Includes 100 brown shipping envelopes to ensure you always have one on hand when needed.
  • these rigid mailers are great to have in your supplies.
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Quality Park #9 Security Envelopes, Double Window, Self Seal, Invoices/QuickBooks Statements, 3-7/8 x 8-7/8 Inches, 24 lb White, 500/Box (QUA24529)

  • These boxes of 500 white #9 double window security envelopes (3 7/8 in x 8 7/8 in) protect your customers' sensitive data.
  • a reflex blue pattern obscures the details of what's inside.
  • Redi-Seal self seal mailing envelopes require no moisture.
  • the unique double flap design allows you to simply raise the lower flap and press to seal.
  • Double window envelopes show sender and receiver addresses.
  • #9 Mailing envelopes measure 3 7/8 in (height) x 8 7/8 in (width) and are made of 24 lb white wove paper with professional side seams.
  • Stock up on boxes of 500 machinable #9 envelopes for bulk mailings.
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Poever Photo Document Mailers 6.25x8.25 White Cardboard Envelopes 25 Pack Rigid Self Seal Mailing Envelopes, Stay Flat Shipping Envelopes for Documents

  • 【6.25x8.25 Inches Document Mailers】Each set includes 25 pack photo mailers. Measuring 6.25 x 8.25 inches, Poever white cardboard envelopes are perfect size for catalogs, documents, brochures, cards, photos, postcards, letters, bills, CD and other sheets of papers or small parts..
  • 【Sturdy and Durable】Rigid Cardboard Mailing Envelopes are made of premium recyclable cardboard materials, makes it thick and strong enough to protect your documents from deformation, scratch and stain. High quality, rigid, lightweight and flat, Poever 6.25x8.25 shipping envelopes is your perfect choice..
  • 【Peel & Seal Design For Easy Use】Each photo mailer comes with a strong adhesive strip for quick self seal, no glue, wax or tape needed. The adhesive strip is strong and lasting, which could create a full and long-time secure seal, protects your documents from falling out of mailing envelopes. The tear strip design provides easy peel without any struggle..
  • 【Multipurpose Blank Shipping Envelopes】With a smooth and blank surface, Poever 6x8 white document mailers are quite professional and official, available for customization. Print your own logo on these document mailers, or write shipping information and stick stamps on them, make it as perfect mailing envelopes.....
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Office Depot Double-Window Envelopes, 8 5/8in. (3 5/8in. x 8 5/8in.), White, Self-Adhesive, Box of 250, 77159

  • With Office Depot double-window, white envelopes, there’s no need to write out labels! Two-window envelopes display the return and mailing address..
  • #8 5/8 envelopes feature a self-adhesive closure that keeps contents safely inside..
  • Self-adhesive envelopes feature a security-tinted inside for privacy and confidentiality..
  • Make mailing labels a thing of the past in your office. Great for businesses that use check-writing software and computer-generated forms, Office Depot double-window, gummed envelopes let you display addresses from the inside..
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Poever Photo Document Mailers 9.25x11.75 White Cardboard Envelopes 25 Pack Rigid Self Seal Mailing Envelopes, Stay Flat Shipping Envelopes for Documents

  • 【9.25x11.75 Inches Document Mailers】Each set includes 25 pack photo mailers. Measuring 9.25 x 11.75 inches, Poever white cardboard envelopes are perfect size for catalogs, documents, brochures, books, magazine, cards, photos, postcards, letters, bills, CD and other sheets of papers or small parts..
  • 【Sturdy and Durable】Rigid Cardboard Mailing Envelopes are made of premium recyclable cardboard materials, makes it thick and strong enough to protect your documents from deformation. High quality, rigid, lightweight and flat, Poever 9.25x11.75 shipping envelopes is your perfect choice..
  • 【Peel & Seal Design For Easy Use】Each photo mailer comes with a strong adhesive strip for quick self seal, no glue, wax or tape needed. The adhesive strip is strong and lasting, which could create a full and long-time secure seal, protects your documents from falling out of mailing envelopes. The tear strip design provides easy peel without any struggle..
  • 【Multipurpose Blank Shipping Envelopes】With a smooth and blank surface, Poever 9x11 white document mailers are quite professional and official, available for customization. Print your own logo on these document mailers, or write shipping information and stick stamps on them, make it as perfect mailing envelope....
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Package Mint Boho Rainbow Poly Mailers 6x9 Inch 200 Pack, Cute Shipping Bags for Clothing, Plastic Mailing Bags for Small Business Self Seal, Non-Padded Waterproof Packaging Envelope (Boho Rainbow)

  • CUTE 6” x 9” BOHO RAINBOW POLY MAILERS (200 Pack): Make your business stand out from the rest with our boho rainbow print poly mailers. These cute rainbow mailing envelopes are USPS, UPS, FedEx & DHL approved and a reliable packaging solution for your retail or online business. Use these Tear-Proof and Waterproof boho bulk polymail bags to ship with confidence!.
  • STRONG & DURABLE PROTECTION: Our unpadded, boho rainbow packaging envelopes are made of 2 mil, low-density polyethylene which is incredibly strong and super protective. Plus, our 6x9 poly mailers 200 pack has a strong self-sealing adhesive strip that is tamper-resistant and tamper-evident to keep your packages safe until they reach their destination..
  • PEEL N’ SEAL ENVELOPES: Each boho rainbow mailer comes with a simple, self-seal adhesive strip to seal each package safely and securely. Eliminate the use of COSTLY adhesive tapes and SAVE time with our tear proof poly mailers! Click on our store front to see our entire range of mailers & packaging supplies..
  • MAKE YOUR PACKAGE STAND OUT! Bored with the ole’ routine plain mailers? Create a lasting impression that will keep your customers coming back for more with our cute mailing bags. These boho rainbow packaging bags helps you stand out fr....
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