Stowliva’s black stock mailers are perfect for a myriad of sustainable packaging needs. From delicate to less fragile items up to 5 kg can be easily packed. The black poly mailer bags are AS5810 Home Compostable and AS4736 Commercially Compostable. The top-class quality of custom poly mailers includes sturdy, premium-matte finish, waterproof, non-transparent, writable, and reusable.

The poly mailer bags are 70-80% PBAT (an entirely compostable co-polymer) and 20-30% PLA + cornstarch. Order a minimum of 50 poly mailers and deliver compostable excellence to your customers.

Kindly Note – If you want to print your logo on this bag, check out our custom mailer product here

BLACK COMPOSTABLE MAILERS FAQs

Where are your Compostable Mailers made of?

Our compostable mailers are made from 70% PBAT, 25% corn starch, and 5% PLA.

What is the difference between degradable and compostable satchels?

Degradable mailers (commonly known as D2W) break down over time but may leave behind microplastics or residues. Compostable mailers break down into natural, non-toxic organic matter without harmful residue.

Are your compostable mailers certified?

Yes. Our compostable mailers are certified to European & Australian standards:

AS5810 — Home Compostable
Certificate Number: ABAP 20125
EN13432 (Europe)

Are your mailers waterproof?

Yes. Our compostable mailers are waterproof, tear-resistant, sturdy, and designed to protect products during shipping.

Can I reuse the compostable satchels?

Yes. Our compostable mailers come with dual adhesive strips for reuse and return orders. Cut along the dotted line after first use, refill, reseal, and ship again.

Do compostable mailers have a shelf life?

Yes. Shelf life is approximately 9–12 months when stored sealed in a cool, dry place away from direct sunlight.

How should my customers compost your mailers?

Remove all non-compostable labels, stickers, and adhesive contaminants before placing the mailer into a home compost bin.

How long do compostable mailers take to compost?

Generally, within 180 days, depending on moisture and temperature conditions.

What happens if compostable mailers end up in a landfill?

They break down into organic matter without leaving toxic or heavy-metal residue.

Sizes & Australia Post Compatibility

Which mailer size should I choose?

Our compostable mailer sizes are designed to closely fit a wide range of products.

Size S — 200 × 280 mm

Fits: Jewellery, cosmetics, small accessories, thin apparel
Approx capacity: Up to 500g

Size S-M — 260 × 385 mm

Fits: T-shirts, activewear, single garments
Approx capacity: Up to 1kg

Size M-L — 315 × 415 mm

Fits: Hoodies, multiple garments, medium parcels
Approx capacity: Up to 3kg

Size L — 395 × 455 mm

Fits: Bulky clothing, jackets, larger orders
Approx capacity: Up to 5kg

Size XL — 420 × 594 mm

Fits: Oversized apparel, shoe boxes, large shipments
Approx capacity: 5kg+

Custom Printing & Bulk Orders

Can these mailers be customised with my logo/design?

Yes. We offer custom compostable mailers with your logo/design starting from just 100 mailers MOQ. Click here to explore the custom product.

Do you offer volume discounts for large quantities of custom packaging?

Yes. Bulk pricing is already available on our website. For wholesale quantities beyond the listed options, email your requirements to support@stowliva.com for a quotation.

Shipping & Delivery

What is the delivery/lead time?

Air Freight: Approximately 7–10 days
Sea Freight: Approximately 7–8 weeks

Lead time may vary depending on order quantity and shipping method selected at the time of checkout.

What is the shipping cost?

Stowliva offers free standard shipping on all products. For express shipping or faster lead times, contact support@stowliva.com for a quotation.

Where are your mailers made and shipped from?

Our compostable mailers are manufactured in our centralised production facility in China and shipped directly to customers globally.

Can you ship directly to our supplier or factory in another country?

Yes. We can ship directly to your supplier, warehouse, or factory globally, including Vietnam, Bali, China, and other regions. Contact support@stowliva.com for a quotation.

Black compostable mailers: specification and ordering

Black Mailers – Home Compostable Shipping Mailers is designed to protect products during courier and postal delivery.

Listed options: Size: S – 7.8"x11" (200 x 280 mm), S-M – 10.2" x 15.2" (260 x 385 mm), M-L: 12.5" X 16.3" (315 x 415 mm), L – 15.5" x 17.9" (395 x 455 mm), XL – 16.5" x 23.4" (420 x 594 mm); Mailer Quantity: 100, 300, 500, 1000, 2000, 5000, 10000; Delivery Time: 7-10 Days, 7-8 weeks.

Confirm dimensions, material and quantity against the product details above. For a comparable quote, share your required specification, artwork if applicable, quantity and delivery destination.

Compare more stock compostable mailers, or plan custom packaging for your brand.

Recycled-content and compostability claims require documentation for the exact product and specification; confirm this before using such claims in your own marketing.

Black Compostable Mailers — Questions & Answers

Can stock black mailers be used as the only protection for fragile items?

A shipping bag does not automatically provide enough cushioning for fragile products. Choose inner protection around the item and delivery conditions.

What current size or bundle options are shown for black compostable mailers?

The current product listing for black compostable mailers shows Size: S – 7.8"x11" (200 x 280 mm), S-M – 10.2" x 15.2" (260 x 385 mm), M-L: 12.5" X 16.3" (315 x 415 mm), L – 15.5" x 17.9" (395 x 455 mm), XL – 16.5" x 23.4" (420 x 594 mm); Mailer Quantity: 100, 300, 500, 1000, 2000, 5000, 10000; Delivery Time: 7-10 Days, 7-8 weeks. Confirm the exact combination in your inquiry; listed timing options require confirmation for the selected order and destination.

What should I test in a sample of black compostable mailers?

Perform a packing trial with the actual product and check usable space after adding protection and sealing.

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