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:
1. Layflat poly mailers
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.
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.

2. Compostable poly mailers
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.

3. Bubble mailers
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.

4. Clearview poly mailers
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.

5. Tyvek poly mailers

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.

6. Recycled poly mailers
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.

7. Expansion poly mailers
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.

8. Biodegradable poly mailers
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.