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9 Best Compostable Mailers: Eco-Friendly Options to Use

Companies must consider their carbon emissions, including using their packaging materials and acknowledge post-consumer waste. Using eco-friendly mailers is one effective way of doing so. Did you know you can ship your products using reusable mailers that are environmentally friendly?

As you grow your company, it’s easy to start needing mailer bags for your products. However, using plastic and other toxic options is harming the environment. That’s why eco-conscious manufacturers have compostable mailer options.

Compostable mailers are in the form of shipping bags, envelopes, and boxes. These use biodegradable or compostable materials that break down quickly.

It takes a compostable bag up to 6 months to break down in a compost pit, while plastic takes decades and even centuries. But can you compost mailers? It is a concern that many users have.

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The Best Compostable Mailers

1. Ywduoying Biodegradable D2W Polymailers

Ywduoying Biodegradable D2W Polymailers


  • Brand: Ywduoying
  • 100% Biodegradable
  • Material: D2W extracted from the gum
  • Waterproof mailers
  • Stretchable
  • Sealing method: Self-sealing bags
  • Color: Pink
  • Carrying Handles


Ywduoying Biodegradable D2W Polymailers Characteristics

These are compostable poly mailers that you can use to send small items through the mail. Each mailer bag uses top-quality D2W material extracted from the gum. It’s durable, doesn’t break easily, and is based on a bio-based polymer, which keeps items secure.

The D2W material extracted from the gum is stretchable. Thus, you can fit more items in compostable packaging without damaging them. Also, the bags have handles that make them easy to carry or handle when shipping.

Each bag is 100% biodegradable. After opening the package, the receiver can dispose of it in the garden or compost pit because these are certified compostable. The mailer won’t harm the soil, plants, or animals around the area. It takes 3 to 6 months to break down completely.

At times you can get caught out in the rain while making deliveries. However, this shouldn’t worry you, as these waterproof mailers protect your items.

You can ship various items in them, including books, accessories, documents, gifts, and other non-fragile items. A company can opt only to use these recycled mailers if they want to make a difference and show this by using sustainable materials.

In customer reviews, many remarks it’s a fantastic product with vibrant colors. It’s lightweight and durable, fitting numerous items. The only drawback is that the home compostable mailer is too thin.

See Related: Best Eco-Friendly Backpacks

2. PHAREGE Shipping Mailer Boxes

PHAREGE Shipping Mailer Boxes


  • Brand: PHAREGE
  • Material: Cardboard
  • Recyclable items
  • Stackable boxes
  • Measurements: 13*10*2 inches
  • Color: Brown
  • Lockable lid
  • Multi-use


PHAREGE Shipping Boxes Product Details

Another option when seeking biodegradable mailers is card boxes that suit businesses. PHAREGE makes 13*10* 2-inch boxes suitable for shipping different items to customers.

The boxes use recycled paper and cardboard material. After receiving the package, you can recycle the cardboard box or add it to the compost pile.

These are sturdy, durable, and easy-to-use boxes for shipping products to customers. Each has a 2-inch thickness that ensures the box can withstand multiple handling. The boxes are lightweight and don’t take up much space.

Every mailer box has a lockable lid. The lid comes with two uniquely designed locking tabs. These are preventive measures to keep items safe during shipping. Also, you can notice if someone tried to tamper with the packaging before receiving them.

Folding the box takes only a few seconds. It’s a simple design that’s easy to assemble, pack the products, and close. That means you can pack numerous items for shipping in a short period.

Another feature is their stackability. Due to the robust nature of the boxes, you can stack them without causing any damage. Stacking these boxes won’t cause any deformity.

These sustainable mailer boxes are excellent for shipping non-fragile items. These can include gifts, books, clothes, and shoes. The items must be light and not prone to spillage. One way to make a difference is to use these boxes exclusively.

Customers remark the boxes are light and an inexpensive way to ship products. These are the right size for shipping, but one customer had a problem with the quality. Boxes got crushed during shipping to the customer’s home.

See Related: Best Insulation for a Greenhouse

3. KTOB Biodegradable Polymailers

KTOB Biodegradable Envelope Mailers


  • Brand: KTOB
  • Material: PBAT
  • Measurements: 10*13 inches
  • Style: Poly envelope
  • Color: Black
  • 100% biodegradable
  • Waterproof envelopes
  • Water-based inks


KTOB Biodegradable Envelope Mailers Tearproof and Tamperproof
KTOB Biodegradable Envelope Mailers Waterproof and Good Adhesion

KTOB has these compostable shipping mailers that are 100% biodegradable. After shipping, the customer can place them in a compost pit to break down quickly.

The eco-friendly material represents a 60% reduction in CO2 emissions resulting in a low carbon footprint, BPA-free, and non-toxic.

Any business that uses these mailers can boost its corporate image. These black envelopes are uniquely designed and meet industry expectations. Companies that use them are socially responsible, sustainable, and eco-friendly.

The biodegradable mailers are unpadded. That makes it easier to package more oversized items or multiple ones in a single envelope. Each has a tamper-evident seal that lets you know when someone tries to open the mail.

So far, the manufacturer has sold over 2.5 million poly mailers that are simple to use when shipping non-fragile items. These are lightweight and keep things secure during deliveries. The biodegradable mailers are waterproof and weather resistant. Items inside won’t be affected by moisture when they come into contact with liquids.

All writings on the envelopes use water-based ink. It’s more eco-friendly and doesn’t contain any plastic or PVC ingredients.

Customers who’ve used the biodegradable envelopes express that these are durable and dissuade any cases of tampering once sealed. Additionally, these are easy to reuse or recycle when one doesn’t want to place them in the compost pit.

One drawback is it’s not easy to stick labels on them. They keep peeling off.

4. KIPULU Biodegradable Bubble Mailers

KIPULU Biodegradable Bubble Mailers


  • Brand: KIPULU
  • Material: PBAT and cornstarch
  • Bubble Mailers
  • Measurements: 6*10 inches
  • Style: Poly envelope
  • Color: Black, Pink, Red
  • 100% biodegradable
  • Closure style: Self-seal
  • Plastic-free
  • Glue-free
  • Certified: ASTM 6400, EN13432, BPI & OK


KIPULU Biodegradable Bubble Mailers Color Options

KIPULU makes 100% biodegradable mailers that you can add to the compost pit after use. These mailers use repurposed corn starch and PBAT eco-friendly according to ASTM 6400, EN13432, BPI & OK, resulting in less carbon footprint.

These mailers are made from durable material that keeps the content safe during shipping. These compostable padded mailers are ideal for shipping fragile items thanks to the bubble wrapping inside.

You can ship glass, paper, and plastic, among other items, safely. Afterward, the customers can dispose of the packaging in a compost pit. It takes 3 to 6 months for it to decompose completely.

There’s no need to use glue when sealing these mailers. These are self-sealing and don’t contain any plastic. The self-adhesive seals it well, and no one can tamper with it during shipping.

It’s a rigid and durable compostable mailer that can carry bulky items without tearing them easily. It endures the shipping journey well and arrives still intact. You must keep them in a cool and dry area away from direct sunlight.

Using these biodegradable mailers is a bonus for each company. It emphasizes its commitment to social responsibility and preserving the environment.

With customer reviews, material and quality are the main factors for many small businesses. These mailers are durable and straightforward to use.

One drawback is the lack of enough sizes to fit large items.

5. RUSPEPA Corrugated Mailer Boxes

RUSPEPA Corrugated Mailer Boxes


  • Brand: RUSPEPA
  • Material: 32 ect-B Kraft corrugated cardboard
  • Measurements: 4*4*2 inches
  • Weight: 42 gms
  • Color: Brown
  • Compostable mailer box
  • of items: 50


RUSPEPA Corrugated Mailer Boxes Product Qualities

These compostable mailer boxes are made using top-quality 32 ect-B Kraft corrugated cardboard. The material is super solid and durable. It can carry lots of weight without deforming, making it appealing to small businesses.

The brown boxes measure 4*4*2 inches. The size is perfect for smaller and non-fragile items. You won’t have to worry about additional weight since each box only weighs 42gm. Avoid shipping any fragile items in them.

RUSPEPA has a return policy for customers. Anyone who purchases the boxes but isn’t satisfied can return them and get a full refund.

These are one-fit mailer boxes that are simple to assemble. You won’t need glue or tape to put the package together.

Apart from ease of use, you can stack multiple boxes without worrying about deforming them. The sturdy material can withstand additional weight, keeping the box looking good for longer. That keeps shipping costs low.

Customers are pleased with the compostable mailer boxes due to their exemplary quality and durability. One drawback is these are small and not suitable for heavy items.

6. HanzOn Eco-friendly Compostable Mailers

HanzOn Eco-friendly Compostable Mailers


  • Brand: HanzOn
  • Material: PBAT/PLA and cornstarch
  • Measurements: 10*14 inches
  • Style: Poly shipping bags
  • Color: Brown
  • Poly mailers
  • Closure style: Self-seal
  • Plastic-free
  • Glue-free
  • Certified: ASTM 6400
  • of items: 50 pcs


HanzOn Eco-friendly Compostable Mailers Product Qualities

Here are biodegradable mailers shipping bags measuring 10 by 14 inches designed for shipping supplies.

These are plant-based bags made using biodegradable PBAT/PLA and corn starch. Once you dispose of them, it takes 180 days to decompose and doesn’t affect the environment.

These are certified biodegradable mailers under the BPI (Biodegradable Products Institute), ASTM 6400, and dabbed properly for industrial composting in several countries, including Austria.

The brown bags are self-sealing, and it has a second adhesive strip. It means you don’t need glue or staples to close once you load your products. The self-sealing adhesive ensures the bags are tamper-proof during shipping.

The custom mailers have a high opacity brown color and are waterproof. Products remain moisture-free no matter the weather. On top of that, the material is sturdy and durable, providing thermal sealing for products.

You can ship clothes and other light items using these mailers. But avoid any heavy items or those that can pierce easily. Clothes companies can use these environmentally-friendly mailers to ship products, thus promoting eco-friendliness.

Customers have lovely things to say about the bag’s stretchability and tamper-proof adhesive. The only concern is the material is light and gets pierced, which disqualifies shipping specific items.

7. Zestly Plant-Based Poly Mailers

Zestly Plant-Based Poly Mailers


  • Brand: Zestly
  • Material: PBAT, Cornstarch
  • Measurements: 12×15.5 Inch
  • Style: Poly Mailers Supplies Mailing Bags
  • Color: Gray
  • Compostable Shipping Bags
  • Closure style: Self-seal
  • Glue-free
  • Certified: ASTM 6400
  • of items: 50 pcs


Zestly Plant-Based Poly Mailers Product Qualities

These mailers are a better alternative to plastic ones that most businesses use to ship products. Not only are they eco-friendly, but these are 100% biodegradable mailers that don’t harm the environment.

Zestly’s brand meets the criteria of OK COMPOST HOME, EN13432, ASTM 6400, and BPI, which are made of modified maize starch and PBAT. These certificates ensure that their poly mailer bags disintegrate solely in water, biomass, and carbon dioxide.

The biodegradable poly mailers material is durable, sturdy, and eco-friendly. It makes quality mailers that you can use to ship non-fragile items. These items can be clothing, cooks, non-fragile gifts, and other things. Avoid sending any products that can break.

The compostable mailers are waterproof and self-sealing. With the white peel-off tape, you can ensure that your things are securely secured without the need for non-eco-friendly tape reinforcement. Not to mention the bond makes the mailer bags tamper-proof.

You can create a lasting impact on your customers by using Zestly’s environmentally responsible packaging. Using sustainable shipping supplies will help your brand develop a responsible and high-quality reputation. Enhance your clients’ unpacking experience to give them another reason to choose you above competitors!

See related: Best Eco-Friendly Trash Bags: Compostable, Biodegradable

8. The ColorBlush Compostable Matte Poly Mailers

The ColorBlush Compostable Matte Poly Mailers


  • Brand: The ColorBlush
  • Material: Corn starch and PBAT
  • Measurements: 10*13 inches
  • Style: Poly shipping bags
  • Color: Matte pink
  • Biodegradable mailers
  • Closure style: Self-seal
  • Plastic-free
  • Glue-free
  • Money-back guarantee
  • of items: 50 pcs


The ColorBlush Compostable Matte Poly Mailers Waterproof and Adhesive Seal Strip

When you purchase these mailers, you get 50 pieces that you can use to ship products. These are made using quality corn starch and PBAT plant-based material that’s eco-friendly and carbon neutral.

The bags are pink, making them perfect for shipping clothes, non-fragile jewelry, and gift items. These can fit multiple smaller items without worrying about ripping or damage.

Each bag is 3 mm thick and measures 10 by 13 inches. Though each is lightweight, the compostable bags are durable and sturdy.

After use, you can place them in a compost pit – where they take up to 180 days to break down. The bags generate less CO2 than plastic alternatives that many other companies use.

The biodegradable mailers have handles that make them more stylish and easy to use. Each has a self-sealing adhesive, meaning you don’t need glue or tape to seal. After sealing, the bags are tamper-proof until they reach the recipient.

If by any chance you’re not satisfied, you can return them and get a full refund. So far, customers have good things to say about them. For instance, this poly mailer is stylish and easy to seal. The pink matte color is quite appealing.

One drawback is the bags are thin. It makes it tough to ship bulky items due to easy tearing.

9. Cradle and Dew 100% Compostable Mailers

Cradle and Dew 100% Compostable Mailers


  • Brand: Cradle and Dew
  • Material: PLA and PBAT
  • Measurements: 10*13 inches
  • Style: eco-friendly packaging bags
  • Color: multi-bright colors
  • Biodegradable mailers
  • Closure style: Self-seal
  • Plastic-free
  • Glue-free
  • Money-back guarantee
  • of items: 50 pcs


Cradle and Dew 100% Compostable Mailers Product Qualities

These are 100% biodegradable mailers made using plant-based PLA and PBAT materials that make up barely 0.05 percent of the annual global corn crop. The bags are 100% compostable, meaning you can place them in the compost pit after use. They break down completely in less than 180 days.

Each shipping bag is eco-friendly, durable, and appealing. The multi-bright colors add to the value of your products. Customers are mesmerized once they receive the item in sustainable packaging.

The mailers have 90% opacity. The manufacturer uses Magimail Innovative eco-linking to achieve this, plus the bright colors. The result is a durable, attractive, and eco-friendly compostable mailer bag with less carbon footprint.

These compostable shipping mailers are ideal for sending documents, non-fragile gifts and products, clothes, and shoes. Avoid packing anything fragile or spiky in them.

Every company can adopt biodegradable mailers and commercial compost. These are eco-friendly alternatives to plastic mailers that harm the environment. Each pack measures 10 by 13 inches, and you get 50 pieces in one order.

BPI tests the bags and have the necessary certification. They meet compostable standards set in America and Europe. No harmful residues remain once the bags degrade in a compost pit.

Customers have positive things to say about the great mailers. One loved the colors and size of the bags. Another found them tamper-proof after packing products meant for shipping.

One drawback that many customers had was the compostable bags were too thin. They easily rip, which affects the quality of the products inside.

Can You Compost Mailers?

Yes, you can compost mailers. These mailers use a material that takes a shorter duration to break down. So you only need to wait for 3 to 6 months until the mailers degrade.

However, the same takes time to break down in a landfill. The period can increase to 18 months, meaning placing them in a compost pit is better.

The good news is that some are also reusable and recyclable. You can repurpose the packaging for other tasks. Below are nine mailers you can use in your business today.


What is the most eco-friendly mailer?

This is a challenging question to answer because it is dependent on your needs. Is the item fragile or prone to water damage? All of these factors will influence the mailer you select, but rest assured that all these mailers are 100% eco-friendly and will secure your packages.

What is the most environmentally friendly packaging?

It’s tricky to choose which one is the most environmentally friendly packaging. But one packaging that stands out the most would be poly mailers since they are made with 100% recycled content and 50% post-consumer waste. They are the most sustainable packaging, the most cost-effective, the lightest-weight, and the most durable method of shipping products.

Are padded envelopes eco-friendly?

Yes, padded envelopes are eco-friendly. They are fully recyclable & customizable with solid protection for your items.

Are mailers cheaper than boxes?

Is there a specific type of mailer or box you would like me to compare?