List of features


Our green mailers have all the qualities you need:

• 13" x 9" (without the flap)
• Waterproof and a little bit stretchy.
• Tough and durable.
• Write-able and print-able.
• Lable-able.
• And edible (for worms)!
• Plus, they are also tear resistant.

Packaging materials information

Corn again

Yep, that’s right.

These babies look like plastic and feel (sort of) like plastic, but they’re made from 100% biodegradable and compostable materials.

Specifically, they are made from corn starch, PLA (made from corn) and PBAT (Polybutyrate Adipate Terephthalate).

Just take the extra bits off and they will decay away, nourishing future generations of flora.

Biodegradable Information

Food for worms

These clever mailers have passed stringent AS5810 certified home compostable requirements, which includes a worm toxicity test, so they’re even worm farm friendly.

Once your customer has finished with their mailer they can simply take off the label and pop the mailer in with their food scraps. It will then biodegrade within 90 days in a regular home composting process.

Mailer love from lovely Sendlers

Did I mention it smells amazing? because it's mostly corn product, when it arrived, it immediately had a wonderfully sweet and warm smell of caramel. I wanted to eat it.

The Seller Journal

Here at Rainbow Natural Remedies in Seattle, we love the compostable mailers. Honestly, I was so surprised that they are compostable because they feel like a sturdy plastic material and look so professional with their matte black finish. They're super convenient and helpful, and I love that they can be reused to collect compost waste!

Daniella, Store Manager

Sendle's compostable mailers are a game-changer. As a company working to reduce the waste and single-use plastic polluting our planet, being able to send our reusable products in literal zero-waste packaging helps to reinforce our company's mission.

Todd, Jill & Joey


What exactly are they made of?

Corn starch (from corn not fit for consumption), PLA (Polylactide, which is made from waste corn too and other plants), and PBAT (Polybutyrate Adipate Terephthalate). 

How long will they take to biodegrade?

In a ‘standard’ home compost, the pouches have been certified (AS5810 -2010) to biodegrade within 180 days, i.e. approx 6 months. Under commercial composting conditions, it would happen much faster. And as litter (e.g. under a tree) it would compost slower, but it will still happen.

How long will they last on the shelf?

Because they're made from plants not plastic, it's important to store the compostable pouches in a cool, dry place. If stored correctly, they will be tough enough to send parcels up to 9 months after purchase.

Do these dimensions include the flap?

No, they don’t. The usable dimensions are as stated.

Sustainable Products We Love

Recycled paper image

Recyclable Paper Packaging

Pack your fragile merch in the caring arms of 100% recyclable, SFI certified, paper pyramids. Easy to store, easy to use. Protect your stuff sustainably!

Compostable Shipping Labels

Compostable 4"x6" Labels

Make it easy for your customers to go green by making it all compostable! Compatible with the most label printers and perfect for our mailers.

Compostable Shipping Tape Image

Compostable Shipping Tape

Commercially compostable tape made of more than 90% biomatter! Your customers will be amazed with your fully compostable packaging. 

  • Sendle's Carbon Neutral Icon

Sendle is the first 100% carbon neutral shipping service in the US and now we're also the first carrier to trial 100% biodegradable, compostable pouches. Woo!