Amazon Basics Catalog Mailing Envelopes, Peel and Seal, 9x12 Inch, Strong Quality, 28 lb White, 100-Pack

These envelopes have been a huge help for my side business. The peel-and-seal strip is a lifesaver because it saves me from having to mess with tape or moisture, and the adhesive actually stays shut. They are a great size for sending out documents or larger items without having to fold them, and the white finish looks a lot more professional than standard kraft paper. Getting a pack of 100 makes it way more cost-effective for shipping, and so far, they’ve held up great in the mail.

Good inexpensive shipping envelopes with adhesive peel closures. Good quality and a great value. Will buy again.

I’ve been using these catalog envelopes for a while now and am very happy with the quality. The paper weight feels durable and professional without being excessively thick or bulky, which is perfect for keeping things streamlined. The adhesive strip is a standout feature—it’s nice and strong, so I don’t feel the need to reinforce it with extra tape. While these do not have a security tint/print on the inside, the paper is opaque enough that you can’t easily see through it under normal conditions. Overall, a reliable and cost-effective choice for mailing documents.

These work great for eBay trading card shipping with standard envelope shipping service.

Good basic large envelopes at a value price. Amazon has the lowest price for these that I have seen, and for what they are, they are nice. They are white and the contents is concealed, and they have the self-closure which is nice. The best part besides the large quantity and low price is that they are packed in a box and shipped in a second box, so they are very well protected which means no smudges, no bends, no corner creases and a pristine envelope every time. All this makes the product close to "A+". However, the envelopes are a bit flimsy. It is hard to imagine a "catalog" going into one and not arriving tattered in the shipping process. These are thin. I got them to ship comic books and 8x10 top loaders which are themselves protected by the PVC. With the comic books, they are sandwiched between cardboard and a plastic sleeve. So, these work for my purposes but I would think that a 40-50 page catalog inside of one of these envelopes would arrive with the sides and corners tattered as these envelopes are thin. Let me paint the picture better so you can fully understand what you are getting. Do you recall the letter and legal size manilla envelopes you can purchase at the Discount or Office store? These are thinner paper than those. So, overall, we rate these a "B+". Not perfect but for the quantity, self-closure, price and adequate quality, they are good to very good, depending upon your use for them.

Looks good and fast shipping.

These are exactly as they should be in size, durability and classic color. A big bonus is that they have a sticker for closure.

I use tons of these and they work great

Buen producto, de buena calidad llego rápidamente.

Tres bonne qualité, ne se déchire pas juste au regard.

Sobre correcto funcional

El material se ve resistente. El auto adherible si cierra bien pero hay veces que se logra despegar depende lo que coloques

Very good quality: sturdy and reliable.