The 12x15.5" mailing bags are very light weight and can be folded easily for storage. You will not have to worry about it opening in the shipping process, the self-seal sticky strip has a cover over it that doesn't come ...

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The 12x15.5" mailing bags are very light weight and can be folded easily for storage. You will not have to worry about it opening in the shipping process, the self-seal sticky strip has a cover over it that doesn't come off easily. If you do a lot of mailing out items everyday, these plastic mailing bags perfect for you!


The poly mailer is lightweight self sealing poly mailers envelopes bags flat poly bags are designed for shipping non-fragile items that need minimal protection during shipment or are already packaged within a protective material. They are commonly used for shipping soft goods like clothing and bedding or items packed within a protective package like shoe boxes, jewelry, and books, or other small things. You can save cost if you choose these Postal Bags.


The Poly Mailer Envelopes are durable with exceptional puncture resistance and tear strength self-seal adhesive closure is tamper evident & will not re-open once it has been pressed closed, labels & self stick stamps adhere securely and easily. Durable polyethylene film moisture resistant opaque for privacy 100% recyclable.


  • Fashionable Colorful Poly mailers- With trendy colors, these shipping bags are sure to make your package stand out and leave a lasting impression to consumers. These chic shipping mailers are smooth to the touch, measuring 12x15.5 inches, and a pack of 100 mails.
  • Sturdy & Durable Construction- Our plastic mailing envelopes are made with premium-grade virgin Polyethylene plastic which are tear-resistant, puncture-resistant and waterproof. And every mailer is equipped with tamper-proof strong self-sealing adhesive strips.You can rely on our postal bags to withstand various factors and ensure that your package is safe before it reaches its destination.
  • Convenient & Economical- The packaging bags can be sealed within a few seconds by peeling and exposing the glue, without the need for packing tape and pulse sealing machine. Plastic custom mailing bags are a great alternative to bulky and expensive shipping boxes.Mailing envelopes are light-weight and space-saving, which can help you save on postage and shipping .
  • Widely Use- Multipurpose envelopes are great for shipping light and less fragile products, such as clothing,books, jewelry, accessories,etc; professional packing to protect your item.Perfect for online retailers,clothing boutiques,office-supplies,family,stores,crafts,schools and warehouse.
  • Metronic quality- Metronic is constantly committed to providing more unique, high-quality and multi-functional poly mailer bags to make your retail, transportation and packaging products stand out. If you have any questions, you can contact us at any time and Metronic will solve it for you in time.

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