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10 Best 12 X 15 Envelopes {Expert Reviews}

A good 12 x 15 envelopes should have quality, performance and price. To make the decision about which one to buy, it can be challenging as you have to screen through so many options. However, our team has compiled a list of 10 popular and top rated best 12 x 15 envelopes that you can consider if you want to buy one. We hope you will find these items to be helpful and save you time and money.

Our Top Picks At A Glance

Take a look at the following comparison chart of our top 10 best 12 x 15 envelopes that will win your heart.

10 Best 12 X 15 Envelopes People Love In 2022: In Depth Features

Bestseller No. 1
12 x 15.5 Clasp Envelopes, Brown Kraft Catalog With Clasp Closure & Gummed Seal, 28lb Heavyweight Paper Envelopes, Great For Filing, Storing Or Mailing Documents, 12" x 15.5" - 10 Envelopes
  • BROWN KRAFT 28 LB STOCK: Perfect For Everyday Home & Business Use - BEST ENVELOPES Clasp Envelopes Are Constructed From Heavyweight 28 lb. Brown Kraft Stock Designed To Give Contents Extra Protection During Mailing, Storage & Handling.
  • GUMMED FLAP: In Addition To The Clasp Closure, These BEST Envelopes Have A Moisture Activated Secure Seal With Deep Gumming On The Flap To Create A Permanent Seal - The Flaps Close With Full Flap Gum To Endure Humid Climates To Ensure The Envelope Stays Sealed So Your Contents Don't Fall Out
  • CATALOG ORIENTATION – Classic Open End Style Enables Fast, Convenient Stuffing For Letter, Legal Document, Pamphlet, Coupon & Other Common Mailers
  • ENVELOPE PACK – Pack Of 10 Envelopes Accommodates Variety Of Small & Large Documents For Home, Office, Business, Legal & More
SaleBestseller No. 2
Quality Park 12 x 15-1/2 Clasp Envelopes, Clasp and Gummed Closures, for Oversized Papers, Drawings or Posters, 28 lb Kraft Paper, 100/Box (QUA37810)
  • Quality Park 12x15 1/2 clasp envelopes are a staple of every office; a gummed flap & reusable clasp make them ideal for mailing and storage; 100/box
  • Envelopes have durable 2 prong metal clasps and reinforced eyelets to let you access your files as needed; open, close, repeat
  • A deeply gummed envelope flap is laid thick with moisture-activated adhesive; creates a firm seal you can trust in the mail
  • Heavyweight 28 lb kraft paper envelopes are opaque to protect private contents; strong enough for bulk mailing or organizing the office
  • A great value; you never know when you’ll need these jumbo catalog envelopes for oversized storage
SaleBestseller No. 3
Quality Park 12" x 15-1/2" Redi-Strip Envelopes, 28 lb. White Wove, Self-Sealing Closure, 100/Box (QUA44082)
  • 12" x 15-1/2" envelopes – the perfect size for holding larger documents flat
  • Redi-Seal closure does not require moisture to seal
  • Unique double-flap design keeps the gum from sticking before use; simply raise the lower flap and press to seal
  • Manufactured from heavyweight 28 lb. white wove stock for extra protection
  • Conveniently packed in 100 count to reduce frequency of purchasing
Bestseller No. 4
Poly Mailers Shipping Envelopes Bags, 12 x 15.5 - inches, 100 Bags
  • 100 12x15.5 Self Seal Poly Mailers
  • Water, Tear and Puncture resistant
  • The silver inner layer provides confidentiality
  • High-efficiency mailers are perfect for shipping a wide variety of non-fragile items
  • Pressure sensitive adhesive provides a high strength durable closure, water and dirt resistant
SaleBestseller No. 5
BOX USA Shipping StayFlat Mailer 12.75"L x 15"W | Flat Cardboard Mailing Envelope for Packing, and Document Storage
  • Perfect Moving Supplies - Designed to fit clothing, books, household, kitchen, garage, basement, office supplies and other personal items for moving, shipping, storage, or small business packaging
  • Heavy Duty Shipping Boxes - Holds up to 65 lbs (pounds), 32 lb (pound) edge crush tested, certified and tested to meet all single wall box storage, mailing, and freight requirements
  • Extra Large, Large and Medium and Small Size Boxes - Made of white unprinted cardboard, single-layer corrugated boxes are lightweight and sturdy, perfect for house files, business file and personal household items
  • 100 Pack Bulk Box Value Bundle - Manufactured from BOX USA and brand new
  • 100% Recyclable and Reusable - Simple materials, excellent performance; Made in the USA
Bestseller No. 6
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 Teal
  • Fashionable Colorful Poly mailers- With trendy colors, these shipping bags are sure to make your package stand out and leave a lasting impression to 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 are 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 pulse sealing machine. Plastic custom mailing bags are a great alternative to bulky and expensive shipping boxes.Mailing envelopes are light-weight 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,office-supplies,family,stores,crafts,schools and warehouse.
  • Metronic Guarantee- Metronic is constantly committed to providing more unique, high-quality and multi-functional poly mailer bags to make your retail, transportation and packaging products stand out. If you have any questions, you can contact us at any time and Metronic will solve it for you in time.
SaleBestseller No. 7
Quality Park R1790 Quality Open End Tyvek Envelopes, 12x15-1/2, White, 100/Box
  • Survivor envelopes are made of DuPont Tyvek material that is super durable yet lightweight; stock up on 100 white envelopes for cost-effective shipments
  • These 12" x 15-1/2" envelopes are tough enough to resist damaging punctures, tearing and moisture from shipping
  • Features a simple flap-stik peel and seal closure for a clean, sanitary seal that requires no moisture; includes a release strip for easy opening
  • Lightweight mailing envelopes that reduce postage costs; perfect for mailing important documents and shipping products to customers
Bestseller No. 8
Quality Park Heavyweight Catalog Envelopes, Gummed, Brown Kraft, 12 x 15.5, 100 per Box, (41967)
  • DURABLE: Made from heavyweight 28 lb. paper stock
  • GUMMED: Fully gummed flaps provide a secure seal to keep contents secured
  • MULTI-PURPOSE: These 12 x 15.5 envelopes are perfect for storing and mailing documents, catalogs, photo's and other home and business mailings
  • IDEAL: These catalog envelopes are a great option for mailing, storage, and organizing
  • GREAT VALUE: Conveniently packed in 100 count to reduce the frequency of repurchasing
Bestseller No. 9
APQ Brown Cardboard Envelopes 12.75" x 15", Pack of 10 Opaque Rigid Mailers with Reliable Adhesive Strip, Self-Sealing Hard Shipping Envelopes, Stay Flat Cardboard Mailers for Sending Paperwork
  • 10 PACK OF CARDBOARD BROWN ENVELOPES 12 3/4” X 15”: Start your effective daily mailing with rigid cardboard shipping envelopes. Discover a full spectrum of emotions with mailing envelopes featuring self-sealing closure, pull tab strip, and rigid walls.
  • QUICKLY SEAL – EASILY OPEN: One of distinguishing features of envelope mailers is our convenient and simple in use self-adhesive seal. When sealed, photo mailers can only be opened just once by pulling and tearing tab strip. Tightly closed with no one else’s access.
  • STIFF – RELIABLE – FLAT: Voyages may be short or distant, however, package inside of flat rigid mailer is preserved and protected. Thanks to rigid and stiff material of photo envelopes, your mail will stay unbent, undamaged, and unfolded and is delivered safely.
  • CUSTOMIZE YOUR OWN MAIL: Ever wished to draw or paint on your cardboard envelopes before sending them? With our brown kraft envelopes, you are able to fully express your creativity and give your mail a truly unique design with paint, ink, and pencils. The freedom is yours.
  • PACKAGE FOR EVERY MAIL: As stiff mailer is so effective and convenient, it is widely used as general mailing solution for personal correspondence, in accounting offices, bank offices, etc. Catalog envelopes are effectively used for photos, documents, mails, invoices, and many more.
Bestseller No. 10
100pcs White Poly Mailer Plastic Bag Shipping Package Envelopes Waterproof Tear-Proof Postal Bags Self Adhesive Sealing Strip (12X15, 100PCS)
  • Self seal poly bags
  • Durable poly bags made of 2.1mil poly material.
  • Perfect poly bags for packaging, shipping a wide variety of non-fragile items.
  • Size: 12"x15", Color: White

Things To Consider Before Buying The Best 12 X 15 Envelopes

Not every 12 x 15 envelopes comes with the same specifications & price. So, you should choose the one that will serve your purpose and save your wallet.

There are a few factors to consider while selecting the appropriate product for you. The first consideration is what you intend to use the product for. You may require a speedy vehicle or a product that will assist you in getting through the day. It’s advisable to find a product that has numerous applications if you need something that can accomplish both.

The type of product you wish to buy is the second thing to think about. Do you prefer a product that is simple to use or one that is more complicated? Are you looking for something tiny or something big? When it comes to picking the best product for your needs, these are all vital factors to consider.

In today’s competitive world, it’s important to find the right product for your needs. This guide will help you do just that. You’ll learn about what to look for and how to choose the best product for you.

There are many benefits to a specific product. You can find a list of benefits on the productï’s website. But there are also many products that have unique benefits that you donï’t find on other products. For example, some products have antioxidants that help reduce the risk of cancer. Other products have ingredients that help improve sleep quality or improve cognitive function.


We choose our 12 x 15 envelopes based on these characteristics. Is it the end of our procedure? No way. The most crucial thing you should know about us is that we constantly update our website to ensure that you have access to up-to-date and relevant information. We have a last layer of filtration because reader pleasure is paramount to us. Please let us know if any of the 12 x 15 envelopes included here is incorrect, irrelevant, or just outdated. Your suggestions are always appreciated, and we’ll do our best to update our list as soon as possible.

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