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25 Pack Manilla Envelopes 9 x 12, Brown, Letter Size, Self-Seal Manila Large Envelopes for Office Business, Home, Organize, storage

Free shipping on orders over $29.99

$4.99

$ 1 .99 $1.99

In Stock

About this item

  • [Premium 9x12 Manila Envelopes for Effortless Organization]: Say goodbye to clutter and hello to seamless organization! Our 25-pack of large 9x12 manilla envelopes is designed to elevate your mailing game. Crafted with a professional look and feel, these brown envelopes are perfect for securely mailing catalogs, brochures, business documents, booklets, and more. Whether you're organizing receipts, storing magazines, or safeguarding photos, these yellow envelopes provide a polished solution for every need. Perfectly suited as manilla envelopes 9 x 12, they’re the ideal choice for both personal and professional use.
  • [Self-Adhesive Seal for Total Peace of Mind]: Mail with confidence knowing your documents are protected. Our 9x12 envelopes self-seal feature an easy-to-use Release & Seal peel strip, ensuring a hassle-free, moisture-free, and mess-free experience. Simply pull, press, and seal—no licking, no tape, no worries. The adhesive creates a strong, tamper-proof seal, so your contents stay secure throughout transit. Whether you’re using these as mailing envelopes 9x12 or large envelopes 9x12 for business documents, the reliable seal adds an extra layer of security.
  • [Durability Meets Security – Built to Protect]: Your documents deserve the best protection. Made from premium-grade brown kraft paper, these manila envelopes 9x12 are built to handle the demands of everyday mailing and storage. The sturdy construction resists tears, creases, and punctures, ensuring your sensitive information is safe from prying eyes. Whether you're mailing important contracts, catalogs, brochures, or using them as manilla folders for document storage, these brown envelopes 9x12 size provide the durability and discretion you need.
  • [Printer-Friendly for Customization & Branding]: Leave a lasting impression with 9x12 envelopes that work as hard as you do. Our printer-friendly manila envelopes allow you to personalize your mailings with logos, addresses, shipping labels, or custom graphics—perfect for businesses looking to elevate their branding. Compatible with both laser and inkjet printers, the smooth surface ensures crisp, smudge-free printing every time. Whether you’re using them as mailing envelopes or customizing them for DIY projects, these yellow envelopes 9x12 are ideal for creative and professional needs alike.
  • [Versatile Solutions for Every Occasion]: From bulk mailings to everyday use, our 9x12 manilla envelopes are the ultimate multitaskers. Whether you're managing office correspondence, delivering school projects, or organizing at home, this 25-pack of mailing envelopes 9x12 offers the perfect balance of quality and quantity. These large envelopes 9x12 are ideal for storing and transporting important documents, brochures, booklets, or even photos. Designed to meet the needs of professionals, educators, students, and families alike, these brown envelopes offer reliable storage, secure mailing, and efficient transportation for any occasion.



Product Description

manilla envelopes
manilla envelopes 9 x 12
9x12 envelopes
manila envelopes 9x12
9 x 12 envelopes
manilla envelopes 8.5 x 11
  • These envelopes measure 9 x 12 inches, making them ideal for mailing or storing large documents, catalogs, brochures, booklets, and more. The size fits U.S. postal regulations for mailing large documents without folding.

  • Yes! These 9x12 envelopes self-seal with a Release & Seal peel strip. Simply remove the strip, press down, and enjoy a secure, tamper-proof seal—no moisture or tape required.

  • Absolutely! These 9 x 12 envelopes are printer-friendly and compatible with both laser and inkjet printers. You can print addresses, shipping labels, or even custom designs directly on the envelopes without worrying about smudging or jamming.

  • Definitely! With a 25-pack of large envelopes 9x12, these are perfect for bulk mailings. Whether for business correspondence, school projects, or regular office use, these mailing envelopes 9x12 offer a cost-effective solution for large-scale needs.

  • Mailing catalogs, brochures, and booklets

    Storing receipts, photos, or magazines

    Professional business correspondence

    School and office projects

    DIY custom designs or creative uses


Julie
March 13, 2025
These envelopes are thinner than I’m used to with larger envelopes. I’ll need to add some cardboard for items that shouldn’t be folded. The sticker seal seems to be strong though and shouldn’t come open during transit.
Peter
January 27, 2025
I can't find the thickness rating for these envelopes, so I feel it and I find the thickness is average for this size envelopes, not extra thick but good enough for office use. Before ordering, pay attention to its size of 9"X12", it can fit a few pages of letter size paper or documents well, but if you are looking to mail a catalog or lots of letter size pages with protective covers, you might want to go up a size to 10"X13" which will fit more and better for any letter size documents but with a protective cover. The quality of these envelopes is good and the self seal adhesive sealed securely, they are suitable for people who just want to mail several pieces of letter size paper/document without having to fold them in half or in third. They are good enough to recommend for household or office use.
Old Customer-
December 20, 2024
Pretty good 9 x 12 manila envelopes. Not the heaviest that I've had, but not the flimsiest either. They will do ok for the purpose I have for them. I like that they are easy to seal with the peel and stick strip. I feel the price of $7.99 for 25 makes these a good value. Not too much else to say, they are Manilla envelopes. Happy with the purchase.
orange_reviewer
December 14, 2024
these arrived just in time as i have a bunch of sticker packs to mail out and they are the perfect size. they seem to be well made and i like that they have the self-sealing strip that you just peel back the paper and stick it shut. decent price for 25 of them. happy with this purchase.
Heather
November 20, 2024
I have an online business and typically mail out merchandise in flat envelopes so I run through them pretty quick.These are your standard nilla envelopes, a bit on the thin side, but equivalent to what you might pick up at your local store. Unlike some on the market, these do not have the metal tab closures but rather a sticky tab to close these. I understand in some cases the metal tabs can get caught up in the postal service machines and some post offices will charge you extra for hand canceling these envelopes. I honestly prefer the sticky closures, but would will add packing tape to reinforce it. Overall these are pretty standard and look pretty well made. No complaints.$5.99 For a 25 pack feels within fair market value.
krtaylor
October 20, 2024
These are standard manila mailing envelopes that will hold a stack of standard letter-sized sheets of paper.There is one modification from what I think of as this normal type of envelope. Usually, these have a lickum-stickum adhesive strip, as well as a metal clasp. Instead of either of those, these envelopes are self-adhesive - you simply remove the protective plastic strip to reveal the adhesive, then seal it shut. The good part is you won't wear out your tongue, but, since there's no clasp, you can't open and re-close it again multiple times.However, because of this change, it may be possible to run these through your printer to print address information on them directly, as shown in the photos. I haven't tried this myself, but I see no reason why it shouldn't work.There are cheaper options out there, so shop around, but these do the job effectively.
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