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Self Seal and Courier Bags

Printed bags, polythene envelopes and courier mailing bags

Polyprint is one of the leading UK suppliers of polythene envelopes, printed mailing film, and self seal bags.

Our printed courier bags prove very popular with both nationwide courier firms and local businesses, sending brochures and products through the post.

Our styles include blockheaded, wicketed or loose printed poly envelopes with self seal, gusset, captive flap or heat-sealable closures. We can print any design from a 2 colour simple logo to a complex 4 colour process or an 8 colour design to enhance your own product, before the pack is even opened.

Every stage of the process is taken care of in our Norfolk flexographic printing factory, from product artwork to plate making. Our quality control ensures that the print design aligns with the pack contents making sure that you are fully satisfied with the final product. Our team of professional printers will be on hand through out the process to offer advice on your project and ensure that your printed bags, turn out exactly to your requirements.

In addition to printed courier bags and self seal envelopes, we also manufacture clear polythene envelopes and magazine bags. We have a broad selection of sizes available in stock, and thanks to our experts in house, we can also make bespoke envelopes to suit your unique requirements.

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The benefits of printed courier bags

  • Our courier bags are already tried and tested by nationwide courier firms
  • Promotional messages can be printed directly onto the postal bag
  • Strong and protective bags helps to ensure your product reaches its final destination in great condition
  • Available in a variety of styles including blockheaded and wicketed bags
  • Our printed courier bags can supplied with self-sealing, gusset, heat sealable or captive flap closures.
  • Available in a variety of sizes to suit your requirements
  • Bespoke envelopes are available to suit your product
self seal and courier bags
printed mail order bag


With four high-capacity bag-making machines, Polyprint can produce over 1 million mailing bags a day. Despite our capabilities to produce such high quantities of printed courier bags, quality remains a priority.

Printed courier bags from our high quality press will ensure your branding has a lasting impression on your customers.

Reliable and strong printed courier bags

We supply strong, high quality printed mail order bags for a variety of uses that are designed to withstand the rigors of the courier market. Whether you are a courier company searching for your own stylish printed bags, or a business sending products directly to your consumers, our team can help.

Already used globally by professional delivery companies and well known couriers, our robust printed bags will protect brochures, magazines or products whilst in transit. Strong, waterproof and available is bespoke sizing its no wonder our courier bags are so popular.

We pride ourselves in offering high resolution flexographic print that will not run or spoil, however challenging the journey. Our printed courier bags are trusted globally and available with a self seal for ease of use and to prevent tampering enroute

Our printed direct mail bags are the ideal choice for mailing small items, magazines, brochures and marketing goods. Our printed plastic bags are just what your business needs to ensure your products reach your customers in perfect condition and wrapped in your branding.

If you are searching for courier company bags or business direct mailing bags, call us today for a competitive quote from our friendly team.

High Quality Printed Promotional Mailing Bags

flexographic printing in Norfolk

Self Seal Promotional Envelopes

Our self seal printed promotional envelopes can be printed with your choice of design or promotional message. Promote your latest offer or sale before your customer has even opened the envelope.

printed mailing bag

Self seal mailing bag

Self sealing mailing bags are available to be printed to match your branding. They can feature a full colour printed design and work to attract attention before the customer even opens the packet. It also helps to protect a publication or package in transit.

printed courier bag

Self seal courier bag

Our self seal courier bags are used by professional couriers and delivery services throughout the UK and worldwide. Printed courier bags protect contents and provide clear branding whilst the product is in transit.