Poly mailers, also known as polyethylene envelopes, are lightweight, durable plastic packaging bags. Made from a synthetic material of polyethylene, Poly mailers are able to protect the product inside from weather conditions such as rain or high humidity, and can be printed on poly mailers. Poly mailers offer strong protection against dust, moisture, dirt and tampering, ensuring your items reach your customers intact. Additionally, they are cost-effective, easy to store, and can be customized to enhance branding.
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These are basic standard polyester mailing bags, usually white or gray, without any padding or lining. They provide lightweight protection for items that don't require additional cushioning, such as clothing, magazines, or books. Flat-lay mail is generally less expensive and can be self-sealed with tape. Suitable for items that are durable or already protected and do not require additional cushioning.
The mailers are made from plant materials such as cornstarch or other biodegradable polymers that break down into compost under proper industrial composting conditions. Similar to a standard lay-flat mailer, but made from compostable materials that break down and return to nature.
The mailers have a clear plastic front so the contents can be seen, while the back is opaque to allow for labeling. They are ideal for shipping printed materials such as catalogs or brochures. Products can be displayed as they arrive at the customer's doorstep. Shipping information, labels and branding can be added to the back of the mailer.
They feature expandable side gussets to accommodate larger items. High-strength seams keep product secure even when overstuffed.
They feature bubble wrap cushioning lining to provide extra protection for fragile items like jewelry, electronics, or delicate books. The bubble lining adds some bulk but protects against impact.
Tyvek Mailing Bags are made from polyethylene fiber, making them extremely durable and tear-resistant, making them more durable than other types of polyethylene mailing bags and ideal for transporting important documents or photos.
Similar to flat mailers, but available in a variety of colors, they build branding and make your packaging stand out.
They have two adhesive strips - one for initial shipment and one for customers to easily return the product.
Slim mailers are designed for shipping long, narrow products such as posters, wallpaper rolls, or fabrics.
The type of plastic mailer chosen depends on the products being shipped, the level of protection required, and branding requirements.
Made from pre-consumer or post-industrial recycled plastic waste rather than virgin plastic. They help reduce the production of new plastic while giving existing plastic a second life. Recycled plastic mailing bags are durable, lightweight, and customizable, making them an excellent choice for environmentally conscious brands.
Heavy-duty, tamper-resistant polyethylene mailer ideal for larger items.
Similar to compostable mail, but made from plastic, it will break down through natural processes over time, even if not industrially composted. Polyethylene-free, often made from ethanol from plant-based sources like cornstarch and sugar cane, is another sustainable packaging option for eco-friendly brands.
Polyethylene mailers are generally much less expensive than boxes or other packaging options, typically costing about $0.25 per mailer when purchased in bulk. Light weight and low profile help reduce shipping costs, especially when rates are determined by weight or dimensional weight.
Poly mailers take up very little space compared to boxes, making them more efficient to store and ship. They don't require any assembly and stack neatly.
Polyethylene mailers feature self-sealing fold-over lips, eliminating the need for tape or additional packaging. Shipping labels can be affixed directly to the mail. Can be customized with branding for a professional look.
Polyethylene mailers provide a waterproof and dustproof barrier to protect contents during shipping.
They are tear-resistant and can withstand the impact typical of non-fragile items during transportation.
Bubble mailers provide extra cushioning for slightly denser items like books or CDs.
Many plastic mailing bags are reusable, recyclable, or made from biodegradable materials, reducing their impact on the environment.
Polyethylene mailers offer little protection for fragile or breakable items such as glass, ceramics, or electronics. Standard poly mailers without bubble lining do not cushion products from impacts or drops during shipping.
Polyethylene mailing bags are designed to ship one or several soft goods at a time. They are not suitable for transporting multiple items together, especially if the items are rigid or need to be separated.
The adhesive tape on polyethylene mailers may not always seal properly, which may cause the contents to spill if the mailer tears during handling. Polyethylene mailers offer little tamper resistance compared to sealed boxes.
Polyethylene mailing bags are made from plastic, which is not biodegradable and takes hundreds of years to break down in landfills. As sustainability becomes increasingly important to consumers, using plastic mailers that are not eco-friendly can harm your brand’s reputation.
Polyethylene mailing bags have a limited range of sizes and therefore cannot accommodate very large, bulky or irregularly shaped items.
Polyethylene mailing bags offer a variety of advantages to e-commerce businesses, including cost savings, space efficiency, convenience, and reasonable protection of non-fragile items during shipping. However, they have limitations in terms of protecting fragile items, fitting multiple items, risk of tearing or tampering, environmental concerns, and size restrictions.
In order to solve these shortcomings and provide comprehensive packaging solutions, ChinaDivision provides customized value-added services based on the needs of enterprises and e-commerce sellers. Their personalized services include quality inspection, customer labeling/repackaging, custom packaging supplies and last mile delivery.
According to your needs, chinadivision can customize poly mailing bags of different sizes and colors to ensure that your goods are optimally packaged. Unique mailing bags can be designed based on your brand image and needs to make your items stand out during the mailing process.
Chinadivision also provides other value-added services, such as adding linings, bubble pads or other protective materials to ensure the safety of goods during transportation. ChinaDivision can help enterprises or e-commerce sellers improve the packaging quality of goods, while reducing costs and environmental impact, ensuring customer satisfaction and the sustainable development of enterprises.
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Poly mailer bags are hugely popular packaging options for ecommerce companies, and for good reason. According to Data Bridge, the polyethylene mailer market will grow at a rate of 4.7% per year from to and will reach $1.69 billion.
Two of the most important priorities for eCommerce businesses are to ensure goods get to customers safely at minimal cost.
Using poly mailers helps businesses to achieve both.
Let’s look at what poly mailers are, the different types on the market, what products you can ship with them, and the many advantages that have made poly mailers so popular. You might find that poly mailers are the right packaging option for your eCommerce business!
Poly mailers are lightweight, plastic packaging envelopes made of moisture-resistant polythene that comprise many of the widely used plastic products in the world. They offer an affordable, lightweight, and sturdy alternative to cardboard boxes, taking up less space in carrier vehicles and reducing shipping costs.
These plastic bags come in many sizes and dimensions. They offer strong protection against dust, tampering, and moisture to ensure goods get to customers in perfect condition.
There are many ways to ship products to your customers, and cardboard boxes will remain the ideal packaging for some products. However, there are several instances where poly mailers will be a much better and cheaper choice than cardboard boxes.
You sure can. Poly mailers are ideal for shipping goods like clothing, shoes, books, toys, and other durable, non-fragile items to your customer’s doorstep.
Poly mailers differ by size, length, purpose, and material composition. You need to make sure you are using the right type of poly mailer packaging for your product needs and brand objectives.
Here are the types of poly mailing bags you can use:
These are the typically white or gray standard poly bags that have no bubble padding. They are cheap, and are best suited for durable or well-protected items that require no additional cushioning.
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Layflat poly bags are best for shipping clothing, shoes, and other unpackaged goods that won’t get damaged when other items are tossed on top of them.
Compostable poly mailers are similar to lay flat mailers, but made out of compostable materials, meaning they’re able to decompose back into to earth.
They’re a great eco-friendly alternative to traditional plastic because they help reduce waste and keep materials out of oceans and landfills. If you’re a business trying to become more sustainable, Compostable poly mailers are a great way to reduce your carbon footprint.
The major difference between bubble mailers and ordinary poly bags is that they come padded with bubble wrap on the inside, which provides an extra layer of protection for the items.
Bubble-lined poly mailers are more expensive than poly bags and are best suited for high-quality goods that need extra security from dents, scratches, and damage.
The extra layer of bubble protection is perfect for shipping fragile products such as jewelry, CDs, clothing and accessories with intricate ornaments, and small electronics.
This type of poly mailer has a transparent front, which allows for excellent product display when the goods arrive at your customer’s doorstep. Shipping information, labels, and branding can be added to the back of the mailer.
Clearview poly mailers are ideal for shipping print materials like books, magazines, journals, and catalogs.
Tyvek poly mailers are made from densely woven polyethylene fibers and are manufactured to be more durable than other types of poly mailers.
They are a durable, water-resistant, and cost-effective option for shipping important documents and photographs. If you’re looking for sturdy packaging options, Tyvek is a solid choice.
Recycled poly mailers are made with recycled materials and are an excellent option for eco-conscious brands or businesses exploring more eco-friendly practices. The proportion of recycled materials used can range from 50% to 100%.
Recycled options are just as durable and moisture-resistant as other types of poly mailers and come in different colors and sizes.
These are heavy-duty, tamper-resistant poly mailers that are ideal for bulkier items. They are made of strong polyethylene, which makes them tear-resistant, and they come with a padded bottom.
They are well-suited for thicker items like jackets, hoodies, binders, sweatshirts, and books.
Biodegradable poly mailers do not contain any polyethylene, and are typically made of ethanol derived from plant-based sources like cornstarch and sugar cane.
They are another type of sustainable packaging that is perfect for eco-conscious brands. These biodegradable poly mailers can be composted at home or commercially.
While these aren’t technically poly mailers, Kraft Mailers — particularly those made out recycled materials — could be a sustainable alternative to traditional plastic mailers. These mailers are made out of paper so they’re 100% compostable.
Poly mailers can be bought at most locations that sell shipping supplies. You can also find them online through certain vendors, depending on your needs. If you’re looking for sustainable options, for example, noissue sells both compostable and recyclable mailers in a variety of sizes.
Poly mailers are best used to ship light, less-fragile items. They have a self-sealing adhesive strip, which makes it a breeze to close the packaging envelope securely.
There is also abundant space to add shipping information and affix shipping labels.
You can ship the following items with poly mailers:
If you have doubts as to whether poly mailers will be suitable for the items you want to ship, ask yourself these two questions:
If your answer is yes, and it's a fragile item that can easily be smashed or crumbled, don't use poly mailer packaging.
Items that are made of glass, or foods, such as chips should be shipped with more sturdy packaging.
An item that doesn't fit properly in its poly mailer packaging can get caught in the machines used to process packages at the post office.
This can lead to damages to your products, and you should consider a better fighting poly mailer or alternative packaging options.
Yes, poly mailers are frequently shipped with USPS using USPS First Class, Priority Mail, and Media Mail.
USPS First Class Mail: this applies when you are shipping a package that is 13 oz or less. It is the cheapest way to ship your items, and it’s best for lightweight items.
USPS Priority Mail: you can ship packages weighing up to 70lbs, and USPS is allowed to open your package to verify its contents.
Your products will be delivered within 1 -3 business days, and shipping costs will be calculated based on distance.
USPS Media Mail: it is a cost-effective way to ship books, CDs, DVDs, and other print materials.
It's crucial that you find a perfectly sized poly mailer for the item you are shipping. Below, we have listed the common sizes for products that are typically shipped with poly mailer packaging.
What size poly mailer for:
To decide whether poly mailers are the right choice for your shipping needs, understand the advantages and disadvantages.
They are affordable. Cheaper shipping costs is the primary advantage of poly mailers for eCommerce merchants. Their lightweight and small size mean they can be easily stored in warehouses. Transportation is cheaper since they take up much less space than corrugated boxes.
They can be easily customized. Branding helps set your products apart from the competition. You can order custom poly mailers with your logo, colors, and other brand imagery.
Using poly mailers offer extra protection. Bubble mailers, expansion poly mailers, and Tyvek poly mailers all feature bubble wrap or are made of durable materials that help cushion fragile items from damage during transit.
They are reusable. Poly mailers have a tear strip that ensures they can be reused at least once. Reusable poly mailers are perfect for returnable items, and eco-conscious customers may want to reuse their packages.
They can’t be used for easily breakable items. Fragile items made of delicate materials like glass that can be easily damaged are not suitable for poly mailer packaging.
They are not ideal for shipping multiple items in one package. Poly mailers are not the best option for shipping multiple items at once unless it's a flat item like soft apparel.
They can tear and rip in transit. If the poly mailer is not properly filled, or you used the wrong type of poly mailer for your product, the packaging can get damaged during processing at the post office or in transit.
Whether your small business is trying to save money, become more eco-friendly or just ship products with protection and ease, poly mailers will help you achieve all of the above.