Dual-Seal Compostable Mailer Bags (Return Mailer Bags)
Wholesale compostable dual-seal mailer bags designed for global B2B shipping and e-commerce fulfilment.
We supply certified PLA/PBAT compostable mailer bags, including courier bags and postage bags, in bulk quantities for OEM programs and commercial logistics use only.
Retail and consumer sales are not supported.
- PLA/PBAT certified compostable materials
- Mailer, courier & postage bag formats
- Wholesale & OEM supply only (B2B)
- EN 13432 · ASTM D6400 compliant
- Direct manufacturer · stable bulk capacity
What Are Dual-Seal Compostable Mailer Bags?
Dual-seal compostable mailer bags—also known as compostable return mailer bags—feature two adhesive closures: one for outbound delivery and a second seal for customer returns.
These bags are commonly used by e-commerce brands that offer returns, exchanges, or reverse-logistics programs, allowing customers to reuse the same outer packaging without additional bags.
How Dual-Seal Mailers Differ from Standard Mailer Bags
| Feature | Self-Adhesive Mailer | Dual-Seal Mailer |
|---|---|---|
| Adhesive strips | 1 | 2 (outbound + return) |
| Suitable for returns | No | Yes |
| Customer reuse | Not designed | Designed for reuse |
| Typical use | One-way shipping | Return programs |
Looking for standard shipping mailers? → View Self-Adhesive Compostable Mailer Bags
Typical B2B Applications
- E-commerce brands with return policies
- Apparel & fashion fulfilment
- Subscription and membership services
- Reverse-logistics workflows
Key Features & Functional Design
- Dual peel-and-seal adhesive strips
- Flat mailer structure for efficient packing
- Tear-resistant and moisture-resistant
- Suitable for manual fulfilment workflows
Materials & Compostability Standards
Our dual-seal compostable mailer bags are manufactured using certified PLA/PBAT compostable materials.
Applicable standards may include:
- EN 13432 (EU Industrial Composting Standard)
- ASTM D6400 (North American Industrial Composting Standard)
- OK Compost (TÜV Austria certification for home/industrial composting)
- BPI Certified (Biodegradable Products Institute certification)
Sizes, Formats & Wholesale Supply
Our compostable mailer bags are supplied in standard wholesale configurations to support distributor, importer, and logistics operations.
Size & Thickness Options
- Multiple sizes for lightweight and bulk shipments
- Thickness ranges balanced for transport durability
- Specifications adjusted by bag type and sealing method
Supply Formats
- Flat-packed bags in cartons
- Bulk case quantities for warehouse operations
- OEM-ready configurations for B2B programs
Customisation & OEM Supply (B2B Only)
We support private label and OEM compostable mailer bag programs for global B2B customers.
Available Customisation Options
- Custom bag sizes and thickness ranges
- Logo printing and brand messaging
- Opaque or coloured finishes for privacy
- Dual-seal (return mailer) configurations
- Custom carton packing for wholesale distribution
Why Global Buyers Source from ORIZON
As a professional manufacturer of PLA/PBAT compostable mailer bags, we provide stable, scalable supply for long-term B2B partnerships.
- 16+ years compostable bag manufacturing experience
- Stable bulk supply and scalable production capacity
- Multi-market certifications
- B2B-focused production and logistics support
- Compliance documentation and verification assistance
Looking for a return-ready compostable mailer solution?
We supply dual-seal compostable mailer bags for brands and logistics partners that require reliable return packaging aligned with certified compostability standards.
Contact our B2B team to review available sizes, material specifications, certifications, and OEM possibilities before placing a bulk order.
