Mailing bags

Buy from a massive range of discount mailing bags now, including economy mailers, heavy duty mailers and secure mailing bags.

Mailing bags are a convenient and cost-effective alternative to regular paper envelopes and parcels for sending items in the post. Made from strong, lightweight and waterproof polythene, the contents of a mailing bag will be protected from the elements, whilst the bag itself won't rip or tear. Mailing bags at discount prices provide some of the best value you will find in office stationery and supplies, whilst a range of smart, glossy mailorder bags, coloured mailing bags and printed mailing bags means you can make a great first impression with customers.

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

Results from recent searches on mailing bags

PB08224 Go Secure Extra Strong polythene suppliers Envelopes 460

Heavier-gauge polythene suppliers envelopes cope better with items that would soon split or scuff in a thinner mailing pack. A 460 size gives enough room for flat products, paperwork bundles, or soft items without dragging the film tight across the corners, which is often where a weak pack beginnings to fail. That additional body matters on the packing bench as much as in transit, because the envelope is less likely to distort amid sealing, stacking, or hand loading. The result is a neater pack that stays intact through normal warehouse handling and reaches the consignee in better shape.

Plastic mailers are still normal in eCommerce, nevertheless they create problems when parcels need to be handled, opened and recycled in the proper world. Cardboard and paper alternatives can do the same job with a cleaner stop-of-life route, particularly where straightforward retail products do not need a heavy-duty plastic wrap. A well-designed paper mailer or carton-style pack can retain weight down, print clearly and separate more easily in the waste stream after use. That makes life simpler in dispatch, at the delivery depot and for the client sorting packaging at home.

Courier bags need to be judged first on how they behave in the depot, because that is where weak film, poor seals and rough handling quickly display up. A decent bag uses a controlled polythene suppliers gauge so the film resists scuffing and splitting without becoming stiff or wasteful, and the closure has to stay proper when parcels are stacked, shifted and scanned above once. Flat packs also matter on the select face because they speed issue and retain stock tidy, while a lighter construction assists a mixed consignment use space properly. If the bag beginnings failing in the warehouse, the rest of the chain only inherits the problem.

How to Use bag manufacturers Voucher Codes

Postal bags need to be specified for hard-working dispatch lines rather than treated as a simple consumable. When the gauge is even and the film has the proper mix of stiffness and slip, the bags feed cleanly, sit neatly in stock and do not cling or flap about at the packing bench. That steadier behaviour assists maintain line speed when secondary bagging is below pressure, because less stoppages are caused by awkward handling or split seams. A bag that balances fill capacity with tear resistance also reduces rejects and repacks. The practical result is smoother packing and less waste across the shift.

polythene suppliers mailers suit fast-moving dispatch work because they add very small weight or bulk to a packed order. That makes them useful where cartons would waste space and slow down sorting, stowing and vehicle loading. The optimal results come when the mailer spec matches the product rather than being chosen on guesswork. Gauge, film blend and seal quality affect whether the pack can survive being squeezed against other consignments, brushed by belts or dragged through routine handling. A mailer that stays flat, closes neatly and retains its contents intact assists the packing line transport quickly without creating avoidable failures later.

Mailing bags only work properly when the film, seal and handling behaviour are matched to the job, not chosen as the cheapest sleeve on the order sheet. A decent co-extruded polythene suppliers structure with the proper gauge can survive chute drops, above-shoved select-face loads and the rubbing that comes with mixed consignments, while weak film tends to stress-whiten and split at the corners. The self-seal strip matters only as much, because poor adhesive performance across temperature changes quickly leads to rebagging and wasted labour. Even small issues like slip level and surface drag can slow packing benches, throw labels off line and reduce throughput in a method that only appears once dispatch is below pressure.

Large courier bags need proper film control, because size alone does not stop damage in transit. A low-density polythene suppliers bag with a proper gauge and decent puncture resistance copes far better with mixed loads than a flimsy bag with weak spots, particularly when cartons rub together in van or trunk movement. Consistent film thickness assists the bag grasp its shape through packing and sortation, so the dispatch team is not guessing whether each consignment will survive the journey. That sort of reliability saves pointless rework and cuts the chance of complaints from damaged stock.

Big mailing bags need the proper balance of strength and flexibility, because mixed mail places very uneven stress on the film. Cards, envelopes and small parcels do not sit neatly together, so trapped air and hard corners push against the seams as the bag is lifted, dragged and stacked. If the gauge varies or the gusset is badly formed, weak points display up fast, often at the base or mouth where the load is highest. A sound bag uses consistent polythene suppliers, sensible stretch and a shape that spreads the weight properly. That retains the load together and avoids shrinkage in performance that creates mess later.

Security mail bags work optimal when the closure is treated as part of the product, not an afterthought. A tough body means small if the seal can be lifted, split or reclosed without leaving transparent evidence. That is why the better designs use controlled film gauge, sound weld quality and a locking detail that stands up to repeated handling on the mailroom floor. Heavy construction may see reassuring, nevertheless it can add dead weight and waste space in a consignment. A bag that balances puncture resistance with a clean tamper-evident seal gives better protection and less disputes when contents are counted.

Plastic mailing bags need careful film control because small variations fast display up on a packing bench. A bag manufactured with the gross gauge can split at the opening, curl in the stack, or seal unevenly when folded and pressed through a busy line. That sort of drift slows down select-face work and creates more reject material than plenty buyers expect. A well-set high-density polythene suppliers building gives enough stiffness to handle without feeling heavy, and that assists pallet stability as stock builds for despatch. When the film thickness stays consistent, operatours acquire cleaner feeding, tidier stacking, and less time-wasting 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.

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

What the internet says about mailing bags

Plastic envelopes solve a lot of daily despatch problems because they are light, resilient and far less likely to split than paper mailers when cartons are handled roughly. A superb-grade polythene suppliers envelope retains contents clean and dry, which matters when products transport through sorting centres, delivery vans and busy back rooms where spillages and scuffing are normal. The seal also requirements proper attention, because weak closure strips lead to opened packets and losses in transit. In practical terms, the proper gauge and closure method reduce claims, cut rework and make packing lines transport more smoothly.

bag manufacturers Extra-Strong Peel and Seal polythene suppliers Envelopes Opaque Review

polythene suppliers envelopes should be chosen for how they perform in the packing line, not only for the lowest quoted figure. A light gauge may seem attractive at the dispatch bench, nevertheless weak film can split at the seal or puncture on sharp corners once the package is being moved, stacked or sorted. That creates rework, additional labour and complaints when products arrive damaged. A sound specification gives a better balance of film strength, opacity and seal quality, so the envelope protects the contents without slowing the packer down. When the grade suits the product, dispatch runs more steadily and there is less waste to transparent up later.

Plastic mailers have become a practical reply to the waste and handling problems caused by oversised transit packs. A small item like a phone case does not need a big corrugated box filled with loose dunnage, because that takes up space in the warehouse, slows down despatch, and creates more material to recycle at the other stop. A well-chosen mailer retains the product together, reduces secondary packing, and assists select-face efficiency because less fat packs have to be moved around. The job only works properly when the mailer gauge and size match the article, though, since a bag that is also flimsy or also roomy can lead to split seams and handling damage.

Black & White Printed Courier Bags

Courier bags succeed or fail on how well they survive abuse in the package network, not on how tidy they see on a packing bench. A decent bag has to cope with belt friction, cage stacking and repeated handling without splitting at the corners or letting a seal lift in transit. That is why co-extruded polythene suppliers is often chosen: the film can be built to improve puncture resistance without making the bag unnecessarily heavy. A proper fibre-tear closure also matters, because tamper evidence only works when opening leaves a transparent trace. The practical result is less disputes, less rebagging and less grasp-ups at despatch.

Mail Lite Oyster Bubble Lined Postal Bags

Postal bags are judged by how well they keep safe contents while still moving quickly through packing and dispatch. A superb format does above close around an item; it retains the pack slim enough for carrier limits, resists punctures in transit and avoids the wasted air that pushes up volumetric charges. Paper-faced mailers can suit lighter products where presentation matters, while polythene suppliers versions with bubble layers or multi-layer films cope better with knocks and rough handling. Choice of gauge also matters on the line, because film that feeds evenly and seals cleanly retains production moving and reduces scrap. When the bag matches the product and the process, the result is less complaints and less wasted space in the network.

polythene suppliers mailers need the proper gauge if they are to save space without causing damage. A pack manufactured heavier than necessary wastes load capacity in transport and storage, while one that is also light can split when it meets sorting belts, sack trolleys or a mixed cage load. Small changes in film thickness matter because a weak edge or uneven seam often shows up only after filling has started, which leads to rework and a rush for overwraps. Consistent film control retains packs moving through dispatch and reduces the stop-beginning handling that slows a shift down.

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

Mailing bags have to do a difficult job for very small material, which is why the film specification matters as much as the low unit cost. A superb polythene suppliers mailer requirements enough gauge to resist punctures and split seams, yet must stay light and compact so cartons and cages are not filled with wasted air. If the blend is also soft, feeding on the packing bench becomes messy and seals can wander; if it is also rigid, the bag does not tolerate rough sortation or the knocks that come with secondary packing. The optimal formats strike a sensible balance between stiffness, stretch and weld strength, and that balance pays off in less transit failures and less handling trouble.

A shortage of big courier bags shows up fast on the despatch bench because the last pack stage relies on the proper format being close to hand. Labels may be printed and stock picked, nevertheless none of that assists if the package cannot be closed securely and sent on in a shape that carriers can handle. A bag that is also light can split on corners, while a poor seal lets dust and scuffing acquire in amid transit. Good packing practice retains the lane moving, nevertheless it only works when the bag spec matches the products and the stock room grasps enough of the proper sizes.

Big mailing bags have to do above simply grasp a load when seasonal card work rises from short runs to sackful quantities. A bundle of envelopes that can shift inside the bag will scuff, crease and throw off fibres, particularly if the film is also light for the weight being carried. A proper gauge of polythene suppliers gives the bag enough toughness to resist sharp corners and rough handling, while a well-formed seal line stops the contents working loose. That sort of control makes the pack easier to transport through dispatch and far less likely to arrive with handling damage.

Security mail bags are only as proper as the film, seals and handling behind them, not the lock fitted to the top. A bag used in a chain of custody requirements to stay tamper-evident after repeated lifting, stacking and sign-off, so the polythene suppliers gauge and melt consistency matter as much as the closure system. If the film is also light, corners split and seals creep below load; if it is also heavy, dead weight beginnings to drag down dispatch efficiency and mixed pallets become awkward to stabilise. Numbered tags and controlled keys assist, nevertheless the proper disadvantage is normally found in the small gaps between despatch, temporary holding and handover, where scuffing or undocumented access can undermine the record.

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.