Flat Mailers are a great way to ship out your products! These mailers include glue on one side, designed specifically for each particular product. We offer different sizes in our flat mailers and they are perfect for shipping small items such as books or CDs. These mailers are designed specifically to protect flat items during shipping, and have a tear strip so you can easily open them.


Looking for the best way to ship your delicate and exclusive products? You will love our rigid stay flat mailers! These mailers are perfect for protecting your valuable products during transit. Yes, at Instant Custom Boxes, we are proud to use high-quality materials that ensure durability. Simply place your order today to enjoy our 50% discount!
As a packaging company, we understand the importance of branding. To win the market, you need to present a professional image. That’s why our flat mailers are customizable to reflect your unique brand identity. Yes, this means you can choose from various sizes, colors, and designs. With our free design support, you can create a packaging solution that protects your products. More than that, it will also promote your business.
Our packaging company has gained a reputation for exceptional quality and reliability. Businesses of all sizes trust our products to transport their valuable products safely. Yet, the best part is that we provide complete customization options. Plus, we have a price match guarantee for the durability of our products.
We know that shipping can be a time-consuming task. But our exceptional Rigid Flat Mailer can make it quick and hassle-free. Additionally, its user-friendly design saves you valuable time. At the same time, it ensures a secure closure every time.
Yes, our rigid stay flat mailers are the perfect fit for shipping documents or other flat products. Most importantly, their flat construction makes them ideal. Plus, with a range of available sizes, you can find the perfect option for your products. In simple words, we will accommodate your specific product requirements!
We care about the environment, and we know you do too. This is why we produce our stay flat mailers from eco-friendly materials. You can choose the material you need, such as recyclable paperboard or kraft. Together with our packaging professionals, you can design a sustainable packaging solution.
What’s more, we know that shipping costs can quickly add up. However, our custom mailers offer an affordable solution. Their lightweight design minimizes shipping expenses. Meanwhile, their sturdy construction eliminates the need for additional protective materials. With our mailers, you can provide superior protection for your items without breaking the bank! Far better, you can get Custom Printed Mailer Boxes with no minimum order quantity!
Instant Custom Boxes offer an ideal option to ship your delicate and valuable products. Our rigid stay flat mailers are the best shipping solution for you. After all, you should never compromise on the safety of your products. So, order branded mailer boxes today and experience our hassle-free shipping!
| Box Style | Flat Mailers |
| Brand | Instant Custom Boxes |
| Dimension (L + W + H) | All Custom Sizes & Shapes |
| Quantities | No Minimum Order Required |
| Paper Stock | 10pt to 28pt (60lb to 400lb) Eco-Friendly Kraft, E-flute Corrugated, Bux Board, Cardstock |
| Printing | No Printing, CMYK, CMYK + 1 PMS color, CMYK + 2 PMS colors |
| Finishing | Gloss Lamination, Matte Lamination, Gloss AQ, Gloss UV, Matte UV, Spot UV, Embossing, Foiling |
| Included Options | Die Cutting, Gluing, Scored, Perforation |
| Additional Options | Eco-Friendly, Recycled Boxes, Biodegradable |
| Proof | Flat View, 3D Mock-up, Physical Sampling (On request) |
| Turnaround | 4 - 8 Business Days, RUSH |
| Shipping | FLAT |