Custom Mailer Boxes

Mailer boxes ideal for ecommerce packaging product presentation and memorable unboxing experiences


Your Custom Mailer Box


Custom mailer boxes offer a smart and secure way to present products while creating a strong unboxing experience.

Widely used by ecommerce brands, subscription services and retailers, they help protect contents while reinforcing branding from the moment the box is opened.

Designed with a sturdy tuck-top closure and additional side flaps that slot neatly into the panels, our custom mailer boxes provide a secure and professional packaging solution.

Whether you're shipping products via post or enhancing your brand presence, these stunning cardboard boxes are built for the job.


Key Features

  • 5 different sizes - Dimensions measured from the exterior
  • 2 premium material options
  • Inside and outside printing available
  • Low minimum order – from just one copy
  • High-resolution 300 dpi printing
  • Printed in full colour

Please note: White printing is not available on brown mailing boxes, and printed colours may vary slightly due to the natural tone of the material.

Why choose Custom Printed Packaging?

Custom packaging does more than protect your products - it elevates your brand. Thoughtfully designed mailers add a sense of luxury, reliability, and quality, making your business stand out. A well-branded unboxing experience leaves a lasting impression, particularly in today's digital world, where influencers and customers continue to share unboxing videos and reviews online.

Designed for practicality and sustainability

Our mailer boxes are easy to open, close, and reuse, and they conveniently fold flat for recycling or repurposing. Get creative with your design to encourage customers to reuse the packaging, reducing waste while enhancing brand engagement.

With a secure three-point closure system, the top flap folds neatly over the box, locking into place, while the extra side wings provide additional security. Delivered flat-packed for space-saving storage, they are easy to assemble when needed.

Perfect for

  • Sample Packs
  • Cosmetics & Skincare
  • Care Packages & Subscription Boxes

Please Note: Not food-safe - We do not recommend using these for cupcakes or food packaging.

Postal Compatibility

These mailer boxes can be shipped via Royal Mail as small or medium parcels, though they will not fit through a standard letterbox.

  1. Custom - Mailer - Boxes
  1. Custom - Mailer - Boxes
  2. Box - Dimensions

Artwork Setup & Templates

FileSizeDownload
Custom Mailer Boxes Templates - 15x12x54.0mb
Custom Mailer Boxes Templates - 20x14x84.7mb
Custom Mailer Boxes Templates - 23x23x85.1mb
Custom Mailer Boxes Templates - 35x25x105.8mb
Custom Mailer Boxes Templates - 50x50x158.1mb