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

What are Jiffy Bags?

Coloured jiffy bags turn a plain despatch into a more visible package without changing the basic protection below. The bubble-lined building still cushions small products against scuffs and knock, while the coloured outer paper assists packets stand out in a busy sorting area or at a client's door. That can make picking and dispatch easier when similar packs are moving through the same system, particularly where fast identification matters. The outer paper also gives a tidy stop that feels more considered than a plain white mailing bag. For light items that need tidy presentation as well as daily transit protection, this is a practical compromise.

Printed mailing bags have to do two jobs at once: transport a decent-looking print stop and still survive rough handling through packing, sorting and transport. That balance relies on above artwork, because film gauge, seal quality and puncture resistance all change when the polythene suppliers web drifts out of tolerance. A bag that is a touch also thin can tear at the corner; one that is also heavy can throw off pack counts, waste pallet space and make consignment weights less predictable. Surface slip matters as well, particularly on fast dispatch lines where bags need to feed cleanly without sticking together. The better selection is normally a well-controlled mono-material structure with a sensible print system and stable film behaviour, since that gives cleaner branding, less handling faults and a simpler route into recycling.

Best transparent plastic mailers hot offers The Winners!

Clear polythene suppliers mailers sit in an awkward nevertheless useful corner of the packing line: visually simple, technically less so. In practice, the value lies not in vague claims about quality, nevertheless in how the film behaves below proper handlingwhether the gauge is tight enough to resist split initiation at the lip, whether the polymer chain structure gives sufficient puncture tolerance without pushing tare weight to an uneconomic level, and whether the surface slip has been balanced so packs dash cleanly through secondary bagging rather than skating off the bench. For fulfilment stock where barcode visibility, fast SKU confirmation and select-face efficiency matter, transparent mailers facilitate faster sortation and less packing errours; the trade-off, of course, is that clarity can expose all scuff, trapped fibre and seam defect, so converting discipline has to be better than normal. The more competent formats tend to rely on mono-material polythene suppliers buildings with consistent melt-flow properties, because that retains seal integrity predictable and gives a cleaner route into film recycling streams once the consignment cycle is perfect. On the warehouse floor the earns are fairly prosaic nevertheless measurableimproved pallet stability through flatter pack geometry, better volumetric efficiency in outbound cages, and less dead weight than board-based alternativesprovided static, blocking and adhesive tear are properly managed amid specification rather than discovered halfway through a busy shift.

Metallic mailing bags occupy a fascinating corner of the fulfilment trade: outwardly decorative, certainly, nevertheless in practice judged far more harshly by how they dash across a packing bench and through the package network. The metallised polythene suppliers film has to maintain decent puncture resistance and seal integrity without dragging tare weight beyond a sensible threshold; that balance is largely a function of polymer orientation, micron-specific gauging and the consistency of the laminate or coated surface. Get that gross and the bag either scuffs also readily in mail-sack handling or becomes unnecessarily stiff, which impairs line speed amid secondary bagging and reduces select-face efficiency. The better buildings manage surface slip and surface resistivity with a few care enough glide for fast insertion of folded products, not so much that stacked packs become unstable on the pallet. There is also a circular-economy consideration that tends to be glossed above in sales copy: where the structure remains close to mono-material polythene suppliers, recyclability is less compromised than with heavily mixed substrates, and the amortised energy of a lightweight flexible format can compare favourably with bulkier outer packaging, provided melt-flow consistency is controlled when reprocessing the trim and factory waste.

Plastic envelopes are used because they give light products a cheaper, neater outer wrapper than paper when moisture, scuffing, or dirt are part of the journey. In fulfilment and dispatch work, a poly envelope can retain a saleable item clean while staying thin enough for fast packing and decent select-face efficiency. The selection of gauge matters: also light and the bag splits or stretches badly below film tension, also heavy and material cost and waste rise without adding much value. Seal quality also matters, because a weak closure turns into handling damage before the package reaches transport. A sensible specification retains secondary packing tidy and the consignment moving cleanly through the warehouse.

polythene suppliers envelopes need to be placed and filled in a controlled sequence if they are to form a proper self-supporting damp course. In this kind of work, the envelope is only part of the job; the proper strength comes from the grout being pumped in the proper part length, left to set, and then continued in the next gap. That stop-beginning method reduces the risk of settlement because the wall is not ever opened up above also long a stretch at once. Overlaps at the connects matter as well, since any weak line could let moisture track through later. Done properly, the result is a continuous barrier that behaves as one line rather than a string of separate patches.

Plastic mailers remain a practical selection for sending small electronics back for recycling because they are light, compact, and simple to handle through the mailing system. For an item like a MP3 player with an internal battery, the proper issue is not the outer pack itself nevertheless getting the unit into the proper recovery route without damage or leakage risk. A complimentary mailer can make return assortment easier at a shop counter or packaging manufacturers, particularly where secondary packing would only add cost and waste. That said, the material should stay clean and intact so the consignment reaches the recycler securely. Used well, a plastic mailer assists convenient take-back without adding much to the waste stream.

Courier bags do a straightforward job, nevertheless the proper colour can make them far more useful in sorting, packing and dispatch. Brightly coloured polythene suppliers bags assist alternative order types stand out on a busy packing bench, which reduces mix-ups when several consignment streams are moving at once. They also assist select-face efficiency, because staff can spot the proper pack type at a glance instead of checking labels on all item. A superb courier bag still requirements proper gauge, clean sealing and enough toughness to survive handling damage in transit. When colour is tied to a transparent warehouse system, the result is faster packing and less mistakes on the loading bay.

Postal bags with a bubble lining give small and medium items a far better chance of arriving intact than a plain paper envelope. The outer kraft face grasps up well in sorting, stacking, and hand sorting, while the inner bubble layer cushions knocks from conveyour handling and package bags rubbing together in transit. That matters when products are light nevertheless still liable to scuffing, cracking, or corner damage, particularly in mixed consignments where sharper edges can work through weaker packs. A superb mailing bag also requirements a proper seal and enough stiffness to stay tidy at the packing bench, because awkward packaging slows dispatch and raises the chance of a rejected item. For shopping and mail-order operations, the proper format retains packing lines moving and reduces avoidable claims.

The current transport away from polythene suppliers mailers is less a matter of sentiment than of engineering trade-offs. In daily fulfilment, the appeal of a normal polythene suppliers envelope has frequently been plain enough: low tare weight, stable seal performance, decent puncture resistance and a forgiving film structure that tolerates automated packing lines without much complaint. Yet that same high-density polymer architecture, particularly where co-extruded layers or adhesive labels enter the stream, complicates recovery and weakens the case for straightforward mono-material recyclability. Paper alternatives alter the equation, though not without caveats; they sacrifice a few volumetric efficiency and moisture tolerance, nevertheless they can simplify mail-consumer sorting, reduce secondary bagging in certain dry-products consignments, and sit more adequately within fibre recovery systems already scaled across distribution. The practical question on the warehouse floor is not whether paper is morally cleaner, nevertheless whether the specification grasps its shape through select-face handling, pallet compression and last-mile abrasion while preserving acceptable pack-out speeds. Where the substrate weight is properly gauged and the seam building is matched to the product profile, paper mailers can mitigate a fair part of the waste burden associated with short-life polythene suppliers stockparticularly for non-fragile, pre-packaged productswhile aligning more credibly with circular-economy targets based on recoverable feedstock and lower amortised stop-of-life complexity.

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

Porter with Mail Bags and Trolley

Mail bags need above simple storage when they are part of a busy station scene, because the bag has to see capable of handling rough daily use as well as carrying the proper visual weight. A well-manufactured bag in the proper material and gauge will hang properly, grasp its shape, and avoid looking limp beside a trolley or porter figure. That matters in display work, where weak detail can spoil the sense of movement and load-bearing. Good surface stop and transparent shaping also assist the item read at a glance, even at a distance. A convincing mail bag gives the all install more purpose and makes the loading point feel active rather than decorative.

our telephone JL0 Jiffy bags

Jiffy bags remain a simple reply when small, fragile items need protection without a fat outer carton. A bubble-lined envelope gives cushioning where a plain paper bag would fail, and that can matter when dispatch teams are handling mixed consignments or moving stock through busy packing benches. The light gauge of the outer material retains mailing costs down, while the fitted bubble layer assists reduce scuffing and impact damage in transit. For compact products like accessories, spare parts, or lightweight shopping items, these envelopes also take up far less space in storage than boxes, which makes picking and packing quicker. Used in the proper size, they give decent protection without wasting material or warehouse space.

Printed Mailing Bags

Printed mailing bags sit at an awkward junction between presentation, pack-line throughput and downstream recovery; the competent specification is rarely about graphics alone. In practice, the film structure has to tolerate conveyour abrasion, sortation pinch points and the low-grade scuffing that occurs once consignments are cage-loaded, while still taking ink cleanly across a surface that may otherwise exhibit poor wet-out. That is why better converters tend to work with tightly controlled gauge tolerances and high-density polymer blends matched to the required seal performancealso light, and puncture resistance drops away amid secondary bagging; also heavy, and tare weight starts to erode volumetric efficiency across palletised stock. Print itself introduces another layer of engineering friction: coverage levels, curing behaviour and surface treatment all affect slip properties, which in turn influence select-face efficiency on fast-moving benches where operatours need one-bag dispensing without blocking or static cling. The more credible route, particularly where return streams matter, is a mono-material polythene suppliers format with disciplined ink selection, so the bag remains compatible with established recycling channels rather than becoming a mixed-material nuisance. In that sense, the bag is less a simple wrapper than a part of warehouse equipmentquietly balancing emblem legibility, melt-flow consistency, pallet stability and amortised energy above the life of a packaging dash.

C 5 Pink Metallic Mailing Bags

Metallic mailing bags occupy an awkward nevertheless useful niche in fulfilment: visually assertive enough for boutique dispatch, yet still subject to the same warehouse disciplines as any other polythene suppliers mailer. The engineering interest lies in the laminate behaviour and gauge control; once a metallic stop is introduced, surface slip, crease memory and seal integrity all become more exacting, particularly where small-format consignments are being packed at pace and secondary bagging is being avoided to keep safe select-face efficiency. In practice, the better-manufactured variants rely on a disciplined balance between film stiffness and puncture tolerance, so that awkward giftware, stationery or similarly low-mass stock does not print through the face or rupture a side weld in transit. There is also a logistical trade-off at work: a lightweight mailer maintains volumetric efficiency and retains tare weight in check, nevertheless if the film is below-specified the consequence is not merely damage risk; it is rework on the packing bench, pallet instability from inconsistent case occupy, and avoidable misuse across the consignment stream. The more credible modern formats address this by keeping the structure close to mono-material polythene suppliers where potential, which at least facilitates cleaner mail-use sorting than mixed-substrate decorative packaging, while improved melt-flow consistency amid conversion assists maintain seal uniformity without excessive material use.

Plastic envelopes are often chosen because heat-sealed seams avoid the weak spots that come with glue, so the pack stays tidy through handling, sorting and transit. That matters when paper-based packs might soften, curl or lift at the edges, particularly in damp stores or busy dispatch areas where cartons are stacked and re-stacked. Polyethylene versions tend to offer a softer, more forgiving feel, while polyester gives a stiffer, clearer stop, so the proper selection relies on the job rather than habit. Used well, they keep safe contents without adding fuss at the packing bench and assist retain rejects down where presentation matters.

Our top sellers in polythene suppliers Envelopes

polythene suppliers envelopes earn their place when lightweight products need protection without adding fat outer packaging. A robust grade of film assists resist splits at corners and along the seal, which matters when a consignment is pulled through sorting systems, stacked in transit, or handled in a busy dispatch area. Clean seals and the proper gauge also reduce the chance of rough treatment turning into damage claims later on. For plenty parcels, that gives a tidy balance between packing speed, material use, and basic security, so the job leaves the warehouse in better shape and with less waste.

Plastic mailers are a poor fit for shirt despatch when recycled kraft packs can do the job with less waste and a cleaner appearance. A mailer manufactured from plastic often gives a secure outer layer, nevertheless it can add unnecessary material, create a mixed-waste problem, and see cost-effective when it reaches the client. Kraft packaging works better for flat garments because it grasps shape, stacks neatly in secondary packing, and is easier to sort for recycling at the stop of its life. There is still a temporary issue where older stock may transport plastic polybags while the spectrum is being changed above, so stock rotation and transparent phase-out control matter. A well-managed switch now reduces handling waste and avoids dragging old packaging habits into new dispatch lines.

Courier Bags

Courier bags need the proper film, seal and identification if documents and small consignments are to stay secure in transit. A co-extruded polyethylene bag with a dark inner layer assists conceal the contents, while a white outer face gives a clean surface for printing and handling. The hot-melt flap gives a permanent closure when it is applied properly, and that matters where tampering or opening in the chain has to be apparant. A transparent pocket for the waybill retains scanning and manual checking simple at despatch and receipt. Sequential numbering and bar-coding improve control through dispatch and stock rotation, so the bag does above transport paper: it assists retain the job traceable.

3 x Self Adhesive Seal Postal Bags 25.4*33+4cm 100pcs Package

Postal bags need to close properly because weak sealing turns a simple despatch pack into a returns problem. A self-adhesive strip is a tidy selection for lightweight products, particularly when the pack size is fixed and the bag only requirements to keep safe contents on the journey from shelf to carrier sack. The film must still have enough strength at the seams and around the flap, or the adhesive does all the work and fails below rubbing, bending, or cool storage. Stocking the proper size also assists packing speed, since oversised mailers waste material and leave items sliding about. A well-chosen mailing bag cuts handling damage and retains mailing lines moving.

polythene suppliers mailers sit at an awkward nevertheless commercially unavoidable junction between presentation, handling discipline and transport efficiency; the better examples are not merely decorative sleeves for a consignment, nevertheless carefully specified films engineered to survive conveyour abrasion, rain ingress and the casual brutality of sortation. In practice, performance hinges on the calibre of the polythene suppliers itselfhigh-density or co-extruded structures with controlled gauge, decent dart impact strength and predictable seal integrity tend to fare better than flimsy stock that distorts below load or splits at the flap amid secondary bagging. Surface stop matters as well: also much slip additive and pallet stability suffers, also small and select-face efficiency drops because operatives are fighting static cling and poor opening properties. Where printed seasonal or promotional graphics are involved, the print layer has to coexist with barcode readability, adhesive performance and melt-flow consistency in manufacture; otherwise the mailer sees the part on dispatch nevertheless creates friction on the warehouse floor. There is also a less glamorous calculation behind the format's popularitylow tare weight, robust volumetric efficiency and flat-packed storage reduce handling burden across the fulfilment chain. If specified as a mono-material structure, the same mailer also fits more cleanly into circular recovery streams than mixed-format packs with paper laminates or rigid inserts, which is why the serious conversation in the trade is less about novelty artwork and more about balancing shelf appeal with recyclability, downgauging limits and the amortised energy tied up in each mailed unit.

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.