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Mailing bags

Buy best value mailing bags now for a professional postage solution and strong, lightweight, waterproof protection.

Mailing bags are…

  • Convenient for sending items in the post that require additional protection or are needed to carry a brand.
  • Great at keeping package contents safe and dry during traditional mail or courier post.
  • Also known as mailers, poly-mailers, plastic envelopes or mailorder bags
  • Made from polythene to provide a perfect waterproof coating for your mail - much better than soggy envelopes!
  • Very light which means that postage costs stay low
  • Strong which means your envelope won’t tear or rip before it reaches its destination
  • Similar in appearance to a regular envelope - rectangular and flat - and open in the same way, at one end to allow you to place your package contents inside
  • Simple to use, with an adhesive strip running alongside the opening of the bag. Just fill the bag with your postage contents, rip off the covering tape, fold down the flap and your mailing bag is ready to post. Easy peasy!
  • A great way to advertise your business. Get your company logo, design or slogan printed on the outside of the mailing bag and impress your customers as their mail lands on their doormat

Trending ideas for plastic bags

Top 10 Cheap Bikepacking Bags – Bikepacking on a Budget

Packing bags for bikepacking must cope with rough handling, weather and constant movement, so low cost alone is not the point. A bag that sees tidy on paper can fail if the material scuffs fast, the seams open below load, or the zip lets in water after a few hours in rain. For this kind of use, the better selection is often a simple design with sensible stitching, decent fastening points and enough stiffness to stay put on the bike. Cheap kit that saves money at the point of purchase nevertheless causes rubbing, leakage or dropped contents soon becomes a false economy.

Mini grip bags earn their retain when small parts need to stay sorted without adding much dead weight or taking up unnecessary space in dispatch. The proper contrast comes from the film, not only the fastening strip, because a consistent polythene suppliers gauge and decent extrusion control assist the bag open, close and reseal properly on a busy packing bench. Poorly manufactured film can spring apart, split at the seam or waste carton space by refusing to lie flat. A superb bag also assists better select-face control when items are counted at speed, while transparent walls, write-on areas and low static assist reduce mis-selects and handling irritation. A sensible mono-material specification normally makes more recycling sense and retains the pack lighter in both material use and transport.

Retail Display Bags

Display bags occupy a slightly awkward space between transit packaging and point-of-sale presentation; the film has to grasp a clean line on the shelf while still tolerating the less glamorous realities of packing benches, secondary bagging and carton compression. In practice, that pushes converters towards tightly controlled gauges and high-clarity polymer structuresoften selected for stiffness, seal behaviour and surface stop rather than mere appearancebecause a bag that slumps in the select-face, scuffs below handling or blooms with static fast undermines stock visibility. The better buildings balance low tare weight with enough body to maintain pallet stability once packed, which matters above is often admitted when volumetric efficiency and replenishment frequency are being scrutinised at the same time. There is also the circular-economy question, and it is no longer peripheral: mono-material formats with consistent melt-flow properties are easier to recover in volume than mixed laminates dressed up as superior packaging, so specification now tends to revolve around what the bag must do on the warehouse floor as much as how it reads below shopping lighting.

Grey Mailing Bags Strong Poly Postal Postage Post Mail Self Seal All Sizes Cheap Grey Mailing - £151.99

Mailing bags work optimal when the grade, size and seal are matched to the job, not only chosen because they are cost-effective. A bag that is also big wastes material and takes up more room in storage and on a vehicle, while one that is also small can split at the side seam or put stress on the seal. Poly mailing bags are broadly used because they are light, water-resistant and fast to close, nevertheless film gauge still matters if the contents have sharp edges or awkward corners. A sound self-seal strip saves packing time and reduces the chance of a weak closure at dispatch. Good bag selection cuts handling damage and retains postage weight below control.

29001 White Patch Handled Plastic Carrier Bags printed with your company emblem

Printed carrier bags do above transport purchases, because they turn a simple sale into a moving bit of emblem work. The bag requirements to survive the shop floor, the walk home, and the bottom of a car boot without splitting at the handle or smudging the print, so gauge, film selection and seal quality matter only as much as the emblem. A weak bag creates handling damage and a poor impression, while a well-manufactured one gives better carrying comfort and cleaner presentation at the till. For high-volume shopping, that makes the bag part of the packing system, not only a giveaway.

6 Mil Poly Bags

Black 6 mil poly bags give a tougher carrying and storage option than light-gauge film, particularly where contents are sharp, awkward, or likely to rub amid handling. The additional thickness assists the bag grasp its shape better on the line and in the warehouse, so sealing is cleaner and split risk is lower when sacks are stacked, tipped, or moved through dispatch. Black film also conceals the contents, which can matter for security, light protection, or keeping appearance consistent across mixed loads. For packing teams, the main benefit is less damaged units and less waste from failed bags. Proper gauge selection is often cheaper than sorting out breakages later.

Clear polythene suppliers Bags

polythene suppliers bags remain a straightforward shopping pack because they keep safe products from dust, moisture and scuffing without adding much weight or bulk. Clear film also lets staff and clients see the contents fast, which assists with picking, shelf checking and dispatch accuracy. The proper selection sits in the gauge and seal quality: also light and the bag splits amid handling, also heavy and it wastes material and costs more storage space. As a secondary pack, it works optimal when the product inside is already clean and reasonably rigid, because soft items can transport around and crease. A well-chosen bag speeds packing and retains stock looking tidy.

Buying plastic bags is certainly a specification selection about size, gauge, and how the bag will behave once it reaches packing, dispatch, or shop use. A thin film may save material, nevertheless it can split at the seal or stretch out when cartons are overfilled, while a heavier bag gives better handling and stack performance at the cost of more resin. In shopping and warehouse work, the proper bag also affects picking speed, product presentation, and the risk of returns through damage. That makes the decision less about simple cost and more about matching the bag to the load, the route, and the method it will be handled.

Hot promotions in plastic bag shop on aliexpress:

A plastic bag shop can see cost-effective on screen, nevertheless the proper saving often comes from the small checks manufactured before an order is placed. Store coupons and platform offers may trim the cost, yet the bigger trade lesson is to compare the full offer, including transport, pack size and any extras concealed in the checkout. Free shipping can make low-value products easier to buy in small quantities, which suits testing or short-dash use, nevertheless it can also mask weak value if the bag gauge or seal quality is poor. Smart buying is rarely about the headline price alone, and that retains waste and poor stock selections down.

Stay tuned forPlastic bags: What’s the big offer? (pt 2)

Plastic bags can make sortation machinery see clean at the beginning of a shift and then leave it struggling by the stop of the dash. Lightweight film, torn handles, labels and static cling all assist bags wrap around rollers, sensours and moving parts, particularly where product flow is fast and mixed. Once that pollution builds, jams become more normal, box alignment slips and operatours spend more time clearing snags than keeping the line moving. The issue is not only tidiness; it is lost throughput and additional wear on the kit. Good control of bag use and removal retains machinery running at a steadier pace and reduces avoidable stoppages.

Mailing bag types

A mailing bag is a polythene envelope used to send contents in the post, but the name covers a whole range of different products. Here are just a few of them:

Lightweight economy mailers - the original and (according to many) best mailing bag. A traditional polythene mailer with no bells or whistles - just a strong, waterproof and lightweight envelope that is very reasonably priced and perfect for you to send items to your clients or customers without breaking the bank.

Glossy blue mail order bags - the mailing bag that speaks business, these metallic blue mailers are guaranteed to give your company the edge and impress your customers. Popular with online traders and mail order companies alike, these mailers are strong and professional in appearance without costing the earth.

Extra tough mailing bags - for those occasions where you want a little bit of extra protection to the contents of your post, these heavy duty mailing bags are perfect for withstanding bumps, scrapes and bangs in transit. Don’t mess with the heavy mob - these mailers are strong, tough and ready to rumble!

Vibrant colourful mailing bags - when you want your mail to stand out from the crowd, what do you do? You send it in a radiant, eye-catching coloured mailer! Guaranteed to bring any package to life, these polythene mailers come in a range of vivid colours - including baby pink, eco green and vibrant purple - to brighten up your customers’ day!

High security mailing bags - if your mail requires an extra level of security then a range of high security mailers are available to give you added peace of mind. Extra thick opaque mailers - available in black or white - provide top secret content confidentiality, while tamper-evident mailers that show if someone has been interfering with your delivery.

Print your very own personalised mailing bags

Take your business to the next level with printed mailing bags personalised with your company logo or design.

This is an ideal way to promote your business as your mail is guaranteed to stand out from the crowd and you are reaching the consumer directly in their own home or office.

There are many ways that you can personalise your mailers - a simple logo, distinctive colour scheme or typeface, company catchphrase or advertising slogan, to name but a few - and ensure that your delivery doesn’t get lost in a pile of post, but really stands out from the crowd!

A firm favourite with retailers in the UK and all over the world, printed mailers have proved to strengthen brand identity and increase customer awareness, so make sure you take advantage of a simple way to give your business a boost.

How to use a mailing bag - 12 easy steps

  1. Consider the contents that you want to post and what kind of mailing bag they require (e.g. standard economy, high security, heavy duty or bubble-lined)
  2. Once you have chosen your type of mailing bag, consider what size mailing bag you need
  3. Look at the contents that you want to post and calculate (or estimate) their size: height, width and breadth
  4. Choose the size of mailing bag that is slightly bigger than the contents of your post
  5. Write the address on the outside of your chosen mailer (this is easier when the bag is flat than full!)
  6. Place your mailing bag on the table and the contents of your post alongside it
  7. Ensure the contents are aligned in the same direction as the mailer
  8. Open the mailing bag, taking care not to peel the label off the adhesive strip (yet!)
  9. Carefully place the contents in the bag, ensuring not to snag the side of the bag as you place them in
  10. Peel off the adhesive label
  11. Fold the flap over and seal the bag shut
  12. You’re done - ready to go to the post office or franking room to send your mail out on its merry way

Where to buy mailing bags

Mailing bag manufacturers and suppliers include:

Polythene Mailers
Polythene Mailers are specialists in polythene mailing bags, stocking a huge collection of waterproof mailers in a variety of styles, shapes and sizes and plain or printed with your own design. With free delivery to any UK address, this is the place to go for polythene mailers!
www.polythenemailers.co.uk

Mailing Bags
The UK's online home of mailing bags caters for all of your mailer needs. Check out their huge catalogue of mailing bags in every style from economy mailers to glossy blue mailorder bags. Also features a fantastic size guide so you know exactly what size mailing bag to buy.
www.mailingbags.co.uk

Mail Order Bags
The home of mail order bags - the lightweight, waterproof and tough plastic envelopes that provide the perfect way to send your mail. Select from a huge range from heavy duty postal bags to light jiffy bags.
www.mailorderbags.co.uk

Plastic Mailing Bags
Mailing Bags is a fantastic website selling a huge range of polythene mailers at very competitive prices. Order online from a range of clear and coloured mailers, with free delivery to any UK address.
www.mailingbags.co

Mailing Bag
Another great mailing bag website, which sells a huge range of bags and provides a comprehensive rundown of why mailing bags are the postal bag of choice for online retailers.
www.mailing-bags.co.uk

Buy Mailing Bags
Packed full of information on mailing bags - including a detailed description of each mailing bag type - along with a comprehensive list of where you can buy them, this is a serious mailing bag website.
www.buy-mailing-bags.co.uk

Plastic Envelopes
Discount Plastic Envelopes is a great source of information on mailing bags and plastic envelopes. Whatever type of mailing bag you need you can find out about it here, along with information on ISO envelope standards.
www.discountplasticenvelopes.com

Polythene Mailing Bags
Find out all about polythene mailing bags at this fantastic website, which tells you all about mailers and why you should use them. Also features a section on eco-friendly mailing bags for those people who want to keep an eye on the environment.
www.polythenemailersdirect.co.uk

Courier Bags
This website is the place to go to find out all about postal sacks, courier bags and polythene mailers. Featuring a great in-depth list of each type of polythene mailer to help you choose the right courier sack for you.
www.couriersacks.com

Bubble Mailers
Bubble mailers is home of bubble mailing bags. Featuring all you need to know on the lightweight, bubble-lined mailers used to protect delicate items, along with eco-friendly alternatives. Check it out today.
www.bubblemailers.org.uk

Mailing Envelopes
If you're trying to decide what sort of mailing envelope you need to meet your mailing needs, then Mailing Envelopes is the website for you. A great place to find out the right size of bag along with details on a range of mailing bags.
www.discountmailingenvelopes.com

Poly Mailers
A great website to buy and find out more about polythene mailing bags. Listing details of a range of poly mailers available, helping you choose the perfect bag for you before you buy.
www.polythene-mailers.co.uk

Cheap Mailing Bags
A treasure-trove of information for anyone looking to buy mailing bags. Containing all the information you need to know on any type of mailing bag and how to get the best discount prices, you need go no further than Discount Mailing Bags.
www.discountmailingbags.co.uk

Plastic Mailing Envelopes
Visit this website to find out more about mailing bags and where to buy them. Featuring loads of information on polythene and eco-friendly mailing bags and a range of other polythene packaging.
www.discountmailingenvelopes.co.uk

Plastic Mailing Bag
A great website for any organisation who posts out a range of stock and wants to do so in a professional manner. Mailing Bags Direct lists common applications for mailing bags, so that you pick the right bag for your company.
www.mailingbagsdirect.co.uk

Mail Order Bag
A great website if you're looking to buy, or simply find out more information about, mail order bags. With details of a range of mailers, from blue opaque mail order bags to high impact silver mailers, this site is mailorder bag heaven!
www.mailorder-bags.co.uk

Research & Resources

For more information on mailing bags and the different types available, plus details of how poly mailers are manufactured, please visit:

Goldstork: A free directory listing the best of the web, featuring carefully selected information on and websites specialising in mailing bags.

PlasticBags.uk.com: Free online directory specialising in polythene packaging. Contains useful articles and other resources, including a list of top mailing bags websites.

PackagingKnowledge: Read detailed information about mailing bags on this in-depth website dedicated to polythene packaging.