Mail bags

Buy now from a huge range of best value mail bags - the tough, light, waterproof polythene solution to all your mailing needs.

Mail bags are polythene envelopes used as an alternative to regular paper envelopes to send items in the post or by courier mail. Polythene mail bags, also known as mailing bags, plastic mailers or poly mail envelopes are an improvement on regular envelopes as they are strong, lightweight and waterproof, meaning greater protection for the contents they carry. Available in a range of colours, and with bubble-lined, heavy duty and security options, there is a mail bag out there for every mailing need.

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

What do the general public say about mail bags?

6 x 9" Pink Mailing bags Parcel Bags polythene suppliers Plastic Cheapest

Pink mailing bags are a light, low-cost method to send soft products, small accessories and other non-fragile stock without paying for a box that offers small additional protection. The polythene suppliers film retains weight down, which assists on postage bands and makes bulk packing easier at the dispatch bench. For folding items and flat parcels, the bag saves carton space in storage and speeds up fulfilment because there is no need for cut fillers or tape-heavy outer packs. A tidy seal matters, though, because thin film can split if it is overfilled or dragged across rough surfaces. Used with the proper gauge and a clean closure, it makes a practical daily mailer for simple consignments.

Metallic mailing bags have to see eye-catching without forgetting the rough treatment of a busy despatch line. The shiny surface is normally the result of pigments or a treated film layer in polythene suppliers, and that can affect seal quality, stiffness and even static behaviour. If the gauge is also light, corners and edges are more likely to punch through the film. If it is also heavy, the pack earns dead weight that adds up across a consignment and wastes space in transit. A sound spec retains pallet loads tidy, closes cleanly, and still runs well at speed on the packing bench.

What A Novice Needs To Know About Jam Paper 13'' x 13'' 12pk Plastic Envelopes with Button and String Tie Closure - Blue?

Plastic envelopes need proper material thickness if they are going to survive handling, not only sit neatly on a shelf. Cheap film often feels fine at first, nevertheless it can split at the fold, tear around the button and string, or proceed cloudy after repeated use. A better-grade envelope normally costs more because the resin, sealing, and conversion standards are tighter, which gives a smoother stop and better strength in daily use. That additional quality matters in document storage, picking work, and normal office handling, where flimsy closures soon become a nuisance. A stronger envelope lasts longer and avoids waste from replacements.

Shipping Supplies - Poly Mailers - Bubble Mailers

Poly mailers work optimal when the proper saving comes from the proper gauge and pack size, not only the lowest headline price. A thin mailer may see cost-effective on paper, nevertheless it can split at the seam, scuff in transit, or let meagre protection ruin the package before it reaches the sort area. Buying in bulk for resale only makes sense when the film grasps its shape, the seals stay even, and the pack quantity suits the sales pattern rather than leaving scattered slow-moving stock. Good specification control cuts handling damage and retains margins from being eaten by complaints and replacements.

Courier Bags

Courier bags need to be judged first on build quality, not on sees. A decent bag for daily transport uses material that can take rubbing from coat zips, cycle bars and repeated opening, while a fashion-led version often cuts corners on cloth weight and stitching. The better styles sit close to the body and spread the load across the shoulder, which makes them easier to live with than a backpack for smaller items like paperwork, a tablet or lunch. That same shape also retains the bag proper amid cycling, so contents are less likely to swing about. A superb courier bag should feel practical before it feels stylish, because comfort and decent building are what retain it in use.

Transparent LDPE mailing bags

Transparent LDPE mailing bags are a practical selection for flat printed items because they retain moisture and dirt away while still letting the contents be seen. That visibility assists at packing stage and again when parcels are checked in dispatch or sorted on arrival, since the consignee can confirm what is inside without opening the bag. The film requirements enough gauge to resist splitting around corners and along seals, particularly when brochures or magazines create a rigid edge. A superb adhesive strip also speeds up secondary packing by removing the need for tape, which saves time and reduces messy closures. Used properly, these bags give clean presentation and straightforward protection in one pass.

polythene suppliers mailers need to be chosen by size and film behaviour, not by the simple view that a larger sack will do the same job as a smaller one. On compact formats, the gauge has to stay consistent because additional material adds weight, makes picking slower, and can cause feeding faults on fast packing lines. On bigger formats, the film has to cope with strain from fat, awkward products without splitting at the welds or stretching out of shape. A well-judged specification also matters in dispatch, since flat-stacking mailers save space and improve pallet stability, while poor slip or static can grasp up a packing bench. The proper balance retains throughput proper and avoids wasteful rework.

Strong Self Adhesive Seal Postal Clothing Packaging Custom Printed Grey Plastic Mailing Bags Wholesale

Plastic mailing bags of the heavy-duty kind earn their retain when the job is fast-moving and the contents need protection without needless weight. A 6x9 format suits small apparel, printed matter, and other compact products that would be awkward in a box, while the self-adhesive strip speeds packing on a busy bench and cuts the risk of poor seals from tape. Grey film also conceals the contents better than transparent packing, which can matter for privacy and shelf-prepared presentation. If the gauge is proper, the bag resists splitting in transit and retains handling damage down. That makes it a sensible selection where speed, discretion, and proper sealing all need to work together.

Coloured mail bags make sorting faster because the material itself carries the code for the contents, so a despatch floor does not have to rely on printed sacks for all job. In a busy packing area, that can save time when alternative returns, documents or small consignments are moving through the same system, and it also cuts the risk of mixing up bags that see alike. Polypropylene gives enough strength for repeated handling, while the colour selection works as a simple visual control at select face and in transit. That come retains stock flexible and makes basic identification easier without adding another print step.

Plastic mailing bags can still have a place in despatch, nevertheless only when the bag selection matches the product and the handling route. For material rolls, soft packaging may save a small space, yet it often gives less protection against scuffing, splitting and dirty warehouse floors than a well-manufactured paper wrap or formed box. Smaller orders also tend to transport through more handovers, so the outer pack has to cope with picking, sorting and courier handling without tearing open at the weak points. A change in packaging format normally beginnings with the damage reports and the recycling note, not the cost sheet. The optimal option is the one that leaves the products clean, secure and easier to dispose of at the far stop.

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 mail bags

Details about   5 Poly Envelopes Mailers Blue Mailing Bags 6.7" x 6"_170 x 160+40mm

Blue mailing bags suit lightweight dispatch work because they turn a basic posted item into a cleaner, harder-to-tamper-with pack without adding much weight. The normal plastic envelope format, often sized around 170 x 250 plus 50mm, gives enough room for folded garments, paper products or other compact consignment items while the flap enables a secure closure. In the warehouse, that shape stacks neatly, feeds well at the select bench, and retains secondary packing simple. The bright blue colour also makes parcels easier to sort at speed, which assists when orders are moving through busy dispatch lines and none wants mixed stock slowing the service.

Pink mailing bags give low-value despatches a faster, cleaner route through packing and mail. A 9x12 inch mailing sack is big enough for light garments, brochures, paperwork, and plenty flat shopping items, while still keeping package size below control at the dispatch bench. The self-seal strip saves time compared with taping all pack, and the plastic outer assists retain out dirt and light rain amid handling. Colour also matters in a busy packing area because pink sacks are easy to spot in a mixed consignment, which assists reduce picking errours. Used well, they speed up repetitive mailing work and retain secondary packing simple.

Metallic Mailing Bags

Metallic mailing bags have to be chosen for how they behave on the bench, not only how they see in the client's hand. A reflective stop can make a package feel more polished, nevertheless the proper job is to retain pace with fast dispatch, stay flat for filling, and seal cleanly without dragging the operatour into rework. Film gauge and lamination quality matter because a thin nevertheless well-manufactured mailer can handle scuffing, while a poor one splits at the corner or lifts at the seal line. That kind of failure slows the line and creates avoidable handling damage. A bag that works properly cuts waste and retains orders moving in a sensible method.

Plastic envelopes with a snap closure give loose papers a simple layer of protection where plain paper wallets would not last long. The polythene suppliers or polypropylene sheet resists scuffs, light moisture and the kind of creasing that can ruin a legal booklet in transit or on a busy desk. A snap fastener also retains contents from slipping out when files are moved between offices, vehicles or storage trays. The size requirements to match the document properly, though, because an oversised envelope wastes space and an overfilled one puts strain on the closure. For routine business use, that balance makes handling cleaner and reduces rework.

What Are Poly Mailers?

Large poly mailers work well when products need a light outer pack that still gives decent protection in transit. Their low weight assists retain postage down, and the flexible form takes up far less storage space than a carton, which makes select-face handling easier and reduces racking pressure in busy dispatch areas. They are also fast to seal, so operatours can retain pace with high-volume orders without adding much labour to secondary packing. The trade-off is that the product requirements to suit a soft-sided pack, because sharp edges and heavy crush loads can still cause trouble. Used alongside the proper inner protection, they can transport small consignments efficiently with less waste.

  147 Plastic Courier Bags provided by UAE Plastic Courier Bags Manufacturers & Companies

Courier bags are chosen for speed, light weight and decent protection, nevertheless the gross spec can cause tearing, split seams or a poor impression when parcels arrive. The bag grade, film gauge and closure method need to suit the load, because a thin mailer may save cents in packing nevertheless fail on sharp corners or heavy contents. In dispatch work, handling damage often comes from overstretching the bag at sealing or from stacks rubbing in transit, so consistency matters as much as cost. A sensible buying decision comes from matching the bag to the product rather than only chasing the lowest quote.

Grey Mailing Bags Strong Poly Postal Postage Post Mail Self Seal All Sizes Cheap Grey Mailing - £63.90

Mailing bags need to balance cost, strength and speed of use if despatch is to dash smoothly. A self-seal polythene suppliers bag in grey conceals the contents well, retains light products clean and cuts the time spent closing each order, which matters when pickers are working through a fast-moving dispatch area. For garments, soft products and other non-fragile items, the proper gauge gives enough tear resistance without adding unnecessary material or postage weight. Clear sizing also assists reduce wasted occupy and bloated parcels. A bag that seals cleanly and grasps together through sorting is normally better value than a cheaper-looking option that splits in transit.

polythene suppliers mailers work optimal when their film is matched to the job, not only chosen for being waterproof. A well-manufactured mailer in high-density or co-extruded polythene suppliers can handle rough treatment in sorting and transport because the material resists splits starting at a corner or cut edge. That matters when parcels are pushed across belts, stacked also tightly in cages, or bagged again for additional protection. If the gauge is also light, sharp products can burst through; if it is also heavy, storage space and material use climb without any proper benefit. Good specification retains damage down and avoids waste.

Plastic mailing bags work optimal when they are light, robust and awkward to open without leaving signs of interference. A superb courier bag for e-commerce requirements above a printed surface; it has to survive fast packing lines, conveyour movement and rough handling in transit without splitting at the seal or scuffing the contents inside. Extra properties like a proof-of-delivery pocket and bubble cushioning add practical value, nevertheless they only work if the bag gauge is proper and the closure grasps properly. A well-manufactured bag protects small products while keeping packing speed high, so the dispatch team can transport cartons and parcels through the system with less errours and less waste.

Mail bags have to do a simple job properly: retain contents together, protected and accountable from dispatch to delivery. A thin bag may see fine on the bench, nevertheless if the gauge is also light or the closure is weak, it can split in handling, invite tampering or leave paperwork damp and creased by the time it reaches its destination. Good mail bags are chosen for the route as much as the contents, with attention to seal quality, carrier handling and whether the load requirements a plain courier bag or a more secure tamper-evident style. That kind of practical selection cuts losses and avoids awkward disputes later.

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.