Best Catalog Mailing Envelopes of 2025

"These envelopes are exactly what I needed! The box of 100 provides excellent value for office work, mailing projects, or personal use. The quality is impressive—they're sturdy, have a professional appearance, and seal securely. I appreciate that they fit full-sized documents without folding, making them perfect for professional correspondence. The adhesive is reliable, ensuring nothing comes undone during transit. I've used them for both business and personal tasks, and they've held up beautifully. Highly recommended!"

"I sell items on Amazon, and during this time, I bought several boxes of these Amazon Basic white mailing envelopes. Although I could have used larger manila envelopes, the size of these at 9 x 12 is just right for my needs. The quality is uniform and superb—very important for client shipments. I haven't had any issues with weak glue; they have held up well. The price is also competitive, at about $13 for 100 envelopes, which is similar to others. I appreciate the clean white color; it makes a good impression on clients. The peel-off adhesive is a major plus, especially compared to clasp envelopes that can be unclean. These envelopes are perfect for client mailing!"

"We have been purchasing these envelopes for several years now. We've never experienced issues with the seal, unlike some reviews suggest. They are strongly built, the correct size, and easy to seal. Highly recommended!"

"These envelopes are just what I needed! The box of 100 offers great value for office work, mailing projects, or personal use. I’m impressed by their sturdy quality and professional look. They fit full-sized documents without folding, which is perfect for correspondence. The adhesive seal is reliable, so I don’t worry about anything coming undone. I’ve used them for both business and personal tasks, and they’ve held up beautifully. Having 100 in a box saves me from frequent reordering. I highly recommend these envelopes for anyone in need of a high-quality bulk supply!"

"As someone who sells items on Amazon, I’ve purchased several of these Amazon Basics white mailing envelopes. I opted for these 9x12 envelopes over the larger manila ones because the size is just more convenient. I can confidently say that the quality is uniform across all the boxes I bought. Unlike other products I’ve tried, the bottom flap has sufficient glue, preventing any risk of items falling out in transit. The white color gives a clean presentation, which I find important for my clients. Plus, the peel-off adhesion is a significant advantage over clasp envelopes. Overall, these are perfect for mailing items to clients and suitable for regular use!"

"We’ve been buying these envelopes for several years now, and I can say they are just as advertised. While I’ve seen some reviews mentioning weak seals, we’ve never encountered this issue. They are strongly built, the correct size, and easy to seal. I wholeheartedly recommend them!"

"I needed large envelopes to mail some important documents, and these did the trick! I especially liked the self-sticking closing flap!"

"These envelopes are nice and sturdy -- but just a heads up, they have glue strips for closure instead of clips."

"I loved the ease of online shopping with quick delivery to my daughter. It was so convenient!"

"I can't express how impressed I am with the Columbian 9x12 Clasp Envelopes! They are essential for my business when sending important documents and bulky items. The durability is remarkable, and I've never had issues with rips or tears."

"These were the most economically priced and sturdy self-seal envelopes I found for mailing certificate packets. The self-sealing feature is a huge time-saver, and they maintained a consistent, secure seal throughout the shipping process."

"I ordered these envelopes for my office and found them to be of good quality and professional-looking. They are easy to seal and offer great value for the price!"

"These envelopes are exactly what I hoped for. I often mail large, heavy packets, and the self-adhesive flap is incredibly convenient for sealing. I typically reinforce them with tape, but they don't really need it unless I'm mailing something heavy. I switched from recycled envelopes to these because they're lower in price and have great quality. I would definitely recommend them!"

"I find these self-seal mailing envelopes to be a game changer! They're very user-friendly—just put my documents inside, press down, and they're securely sealed. I appreciate not having to deal with moisture or glue; the self-seal feature is quick and easy. The quality is excellent, giving my contents a professional look while ensuring safety during transit. I highly recommend these for anyone needing a reliable mailing option!"

"I've bought these envelopes for my business, and they've held up great. The price is a great value, and the quality is excellent. The adhesive seals well, and the paper is thick. I would definitely recommend them for any standard letter mail!"

"I find these envelopes to have a strong adhesive. They feel thicker than others I've used and handle shipping issues easily."

"These envelopes are exactly as described and very durable. The size is perfect for my office needs, and I definitely recommend them."

"While the material is a bit thin, it still does what I need it to do."

"These are great for mailing paperwork; I can't see through the envelope at all!"

"I run an Etsy and TikTok Shop, and I use several mailers daily. The quality of these envelopes is great. The price is unbeatable compared to what I find in stores. 10/10!"

"I've tried many self-sticking envelope brands that wouldn't stick well, leading to them opening up. With these, they stick so well that I need a letter opener to get them open - perfect! I will always use this brand for all my envelopes."

"I absolutely LOVE this brand for their envelopes! They are easy to use and come in so many different sizes. I'm grateful for the large batch packaging since I often find myself needing more envelopes."

“I find the Amazon Basics Catalog Mailing Envelopes perfect for all my mailing needs! The 6x9 inch size is ideal for catalogs and brochures. The peel and seal feature is fantastic—it ensures my items arrive securely. The brown kraft material looks professional, and the 100-pack offers great value. I’ve used them for personal and business purposes, and they’ve always performed flawlessly. Highly recommended!”

“I ship stamps and postcards using these envelopes, which helps me lower costs for free shipping. They are an excellent value. While the adhesive isn't great, I simply add a Do Not Bend sticker on the flap, and my customers rave about the consistent and safe packaging. Overall, a great product!”

“I used to buy these at Staples, but their prices nearly doubled! I’m thrilled to find these envelopes at a much better price here. They perform just as well, and I’ll be making my purchases here from now on.”

"I purchased the Columbian 9 x 12 Catalog Envelopes. The quality is great and the price is fantastic for what I received. I'm very satisfied with my purchase."

"I've ordered these envelopes several times. They are useful and versatile for various needs!"

"There's nothing remarkable to add, but these envelopes perform as expected. The adhesive strip definitely makes our annual client mailing much easier, and the price was very reasonable."

“These envelopes are perfect for my needs. I create and sell vinyl decals, and their lightweight, self-sealing, and sturdy design makes them ideal for shipping. The price is comparable to other products, and I will definitely be reordering.”

“I ordered these envelopes to send my relative's mail while they’re abroad. They are just the right size for forwarding, and I found them to be a good value overall. I’d give them four stars.”

“Upon receiving these envelopes, I was not disappointed. They arrived shrink-wrapped, and their high durability allows me to send various items without concern. The peel and seal feature works well for me, and overall I feel I got fair value for my purchase.”