Compostable Mailer Bags Wholesale

Compostable Mailer Bags Wholesale – Eco Friendly Shipping Bags for E‑commerce & Logistics

At HEMCBags, our compostable mailer bags wholesale offer e‑commerce brands, fulfillment centers, 3PL operators, and packaging distributors a certified sustainable alternative to traditional plastic poly mailers. Our eco friendly shipping bags are made from 100% plant‑based materials (PLA, PBAT, corn starch) with NO polyethylene — fully decomposing under industrial or home composting conditions within 90‑180 days into CO₂, water, and biomass, leaving NO microplastics or toxic residues behind. As a leading compostable mailer bags manufacturer, we help you create custom‑branded shipping solutions that stand out in the market.

According to industry research, the global compostable mailers market was valued at approximately USD 1.56 billion in 2024 and is projected to reach USD 7.47 billion by 2035, growing at a CAGR of 15.3%. The global e‑commerce packaging market was valued at USD 80.3 billion in 2025 and is projected to reach USD 172.2 billion by 2034, at a CAGR of 8.9%.

The polyethylene mailers market is set to grow from USD 3.5 billion in 2025 to USD 5.69 billion by 2034, with the compostable segment growing at an accelerated pace driven by plastic bag bans in over 130 countries and consumer demand for sustainable shipping. This represents a significant opportunity for B2B buyers switching to certified compostable mailer bags — and HEMCBags is your ideal wholesale supplier and manufacturing partner.

Why Choose HEMCBags as Your Compostable Mailer Bags Manufacturer?

• 100% Compostable & Certified – BPI, ASTM D6400, EN 13432, OK Compost Home
  Feature: Our compostable shipping bags bulk are BPI (ASTM D6400), EN 13432, and OK Compost Home certified. Made from plant‑based PLA, PBAT, and corn starch with NO polyethylene. Certified for both industrial and home composting. BPI Certification is an official third‑party certification symbol, signifying that a product has been independently tested and verified to meet ASTM D6400 standards for compostability — requiring complete disintegration, full biodegradation into CO₂, water, and biomass, and no toxic residues in finished compost [4]. OK Compost Home certification verifies complete biodegradation within 12 months under ambient home composting conditions.
  Benefit: Meet increasingly strict plastic ban regulations in over 130 countries. Provide verifiable eco‑credentials for your brand — unlike generic “biodegradable” claims, BPI and OK Compost certifications are third‑party verified, giving procurement teams and consumers confidence. Achieve your ESG targets and build genuine trust with eco‑conscious customers. Full certification documentation available upon request.
• Self‑Adhesive Peel & Seal – Fast, Secure, and Tamper‑Evident Closure
  Feature: Our biodegradable poly mailers wholesale feature a strong peel‑and‑seal adhesive strip that provides instant, secure closure — no tape required. The self‑adhesive design speeds up packing workflows and ensures tamper‑evident protection during transit. Simply peel off the protective liner and press to seal.
  Benefit: Your fulfillment team can seal bags in seconds, reducing labor time and speeding up order processing. The tamper‑evident seal gives your customers confidence that their order hasn’t been opened during transit — reducing disputes and enhancing brand trust.
• Waterproof & Non‑See‑Through – Protect Sensitive Shipments in Any Weather
  Feature: Our custom compostable mailer bags feature 100% waterproof construction and opaque material that ensures contents stay dry and private during transit. Ideal for shipping apparel, documents, electronics, and confidential materials. The opaque design prevents package contents from being visible, adding a layer of privacy and security.
  Benefit: Your customers receive their orders in perfect condition — no weather‑related damage, no privacy concerns. Perfect for banks shipping sensitive documents, e‑commerce brands protecting customer privacy, and apparel retailers ensuring professional presentation regardless of shipping conditions.
• Superior Strength & Tear‑Resistant – Tested in QC Labs for Commercial Use
  Feature: Our compostable mailer bags wholesale are engineered with multi‑layer co‑extrusion technology, delivering high tensile strength (MD ≥ 25 MPa) and puncture resistance comparable to traditional poly mailers. All bags are tested in our dedicated QC labs to ensure no bursting under heavy loads. The strength of all our bags is rigorously tested in our dedicated QC labs to ensure no bursting under heavy loads.
  Benefit: Your products stay protected during storage, handling, and transit. No torn bags, no damaged contents — reduces product returns and customer complaints. For e‑commerce brands shipping apparel, books, accessories, and non‑fragile items, our mailers provide reliable protection without adding unnecessary weight.
• Excellent Printability & Writability – Custom Branding & Easy Addressing
  Feature: Our compostable shipping mailers feature a smooth surface that accepts high‑quality custom printing and can be written on directly with markers or pens. Ideal for custom logo printing, return address labels, barcodes, and promotional messaging. Custom printing options: up to 8 colors, water‑based eco inks, gravure printing. The writable surface allows staff to write directly on the bag — no labels needed.
  Benefit: Build brand recognition with every package delivered — custom‑printed mailers with your logo, brand colors, and sustainability messaging turn your shipping materials into a powerful marketing tool that reinforces your eco‑commitment. For smaller operations, staff can write addresses directly on the bag, reducing label costs and simplifying packing workflows.
• Dual‑Seal (Return Mailer) Option – Streamline Customer Returns
  Feature: We offer dual‑seal compostable mailer bags with two adhesive strips — one for outbound delivery and one for customer returns. This format is widely used by e‑commerce brands with return programs, supporting efficient reverse logistics without requiring additional packaging. Customers can reseal the bag using the second adhesive strip for hassle‑free returns.
  Benefit: Simplify your returns process and improve customer experience. The dual‑seal design reduces packaging waste and eliminates the need for customers to find their own return packaging — increasing return completion rates and customer satisfaction. Perfect for apparel brands, subscription boxes, and e‑commerce retailers with frequent returns.
• Fully Customizable – OEM & Private Label Services
  Feature: As a leading compostable mailer bags manufacturer with OEM/ODM capabilities, we offer full customization: custom sizes (standard: 6×10″ to 16×24″), thickness (50‑100 microns, 2.0‑4.0 mil), custom Pantone colors, custom logo printing using eco‑friendly, non‑toxic inks (gravure printing, up to 8 colors), custom packaging (bulk cartons, retail‑ready boxes), and dual‑seal return mailer options. We also support private‑label packaging design, barcode and label design, and certification compliance support.
  Benefit: Build brand recognition with every package your customers receive. Custom‑printed compostable mailer bags with your logo, brand colors, and packaging design turn every shipment into a branding opportunity — perfect for e‑commerce brands, fulfillment centers, and private label programs. Dedicated project coordination for custom OEM programs ensures your specifications are met precisely.
• Competitive Wholesale Pricing & Global Shipping – Factory Direct
  Feature: MOQ starting from 10,000 pieces for standard sizes (or 500 kg for custom orders). 3‑day sample turnaround, 15‑20 days bulk delivery, monthly capacity 500 tons. Factory‑direct manufacturing with no trading intermediaries — 16+ years of compostable bag production experience. Our factory is equipped with advanced, fully automatic production lines, covering film extrusion, printing, and bag conversion. ORIZON, a leading manufacturer, supplies exclusively for B2B buyers — e‑commerce brands, logistics providers, packaging distributors, and importers worldwide.
  Benefit: Reliable supply chain with predictable lead times, factory‑direct pricing — scale your e‑commerce fulfillment operations with confidence. Stable bulk supply for long‑term and repeat orders, with flexible MOQ options for market testing.

Mailer Bag Formats We Supply

Based on industry standards from leading manufacturers, we supply multiple compostable mailer bag formats for different fulfillment workflows. All formats are available for bulk supply and OEM programs:

• Self‑Adhesive Mailer Bags (Peel‑and‑Seal): The most commonly used format for everyday e‑commerce shipping. Features a peel‑and‑seal closure and flat mailer structure, suitable for high‑volume order fulfillment, apparel shipping, and direct‑to‑customer deliveries where speed and simplicity are required.
• Dual‑Seal Mailer Bags (Return Mailers): Includes two adhesive strips for outbound delivery and customer returns. Widely used by e‑commerce brands with return programs, supporting efficient reverse logistics and improving the customer return experience without additional packaging.
• Open‑Top Mailer Bags (No Adhesive): Supplied without adhesive for controlled packing environments such as automated packing lines, packaging distributors, and heat‑seal or tape‑seal workflows.

How to Customize Your Compostable Mailer Bags? (Easy OEM/Private Label)

As a professional compostable mailer bags wholesale manufacturer with OEM/ODM capabilities, we make customization easy. Whether you need 10,000 pieces or 1,000,000+ pieces, we tailor every detail to your brand and fulfillment specifications.

What You Can Customize for Your Compostable Shipping Bags Wholesale Needs:

• Size & Dimensions – Standard sizes: 6×10″, 8×12″, 10×13″, 12×15.5″, 14×17″, 16×24″. Fully custom dimensions available for unique product requirements.
• Thickness – 50‑100 microns (2.0‑4.0 mil) standard. Custom thickness available for light‑duty or heavy‑duty applications.
• Color – White, Kraft, Natural, Black, custom Pantone colors. Solid colors or patterns available.
• Custom Printing – Print your logo, brand name, return address, barcodes, or sustainability messaging using eco‑friendly, non‑toxic inks (gravure printing, up to 8 colors).
• Mailer Format – Self‑adhesive (peel‑and‑seal), dual‑seal (return mailer), open‑top (no adhesive).
• Custom Packaging – Bulk cartons, retail‑ready boxes, or shrink‑wrapped bundles. Custom printed with your brand design.

How it works: Send us your requirements (size, thickness, color, mailer format, printing artwork, quantity, packaging preference). We’ll provide a sample confirmation within 3 days and start mass production after your approval.

Technical Specifications (Hardcore Data for Procurement)

Material: PLA + PBAT + Corn Starch (plant‑based biopolymer blend) — NO polyethylene
Certifications: BPI (ASTM D6400), EN 13432, OK Compost Home, ASTM D6400, ISO 9001:2015
Standard Sizes: 6×10″, 8×12″, 10×13″, 12×15.5″, 14×17″, 16×24″ (custom available)
Thickness Range: 50‑100 microns (2.0‑4.0 mil), customizable
Colors: White, Kraft, Natural, Black, custom Pantone

Mailer Formats: Self‑adhesive (peel‑and‑seal), dual‑seal (return mailer), open‑top (no adhesive)
Printing Options: Gravure printing, up to 8 colors, water‑based eco inks
Temperature Range: -20°C to +50°C
Tensile Strength: MD ≥ 25 MPa, TD ≥ 15 MPa
Waterproof: 100% waterproof construction — contents stay dry during transit
Decomposition Time: 90‑180 days in industrial composting; OK Compost Home certified for backyard composting
Shelf Life: Up to 12 months in cool, dry place (away from direct sunlight and high temperatures)

Certifications & Compliance (Trust Builders)

• BPI (US/Canada) – Verified by Biodegradable Products Institute — meets ASTM D6400 standard for US commercial composting facilities. The BPI Certification Mark is an official third‑party certification symbol, signifying that a product has been independently tested and verified to meet ASTM D6400 standards for compostability — requiring complete disintegration, full biodegradation into CO₂, water, and biomass, and no toxic residues in finished compost.
• ASTM D6400 (US) – Certified for compostability in US commercial facilities — accepted by municipal composting programs nationwide. This standard ensures products biodegrade at rates comparable to known compostable materials in industrial composting environments. Products must achieve 90% biodegradation within 6 months and full disintegration within 12 weeks.
• OK Compost HOME (TÜV Austria) – Certified for home composting — unique selling point for e‑commerce brands targeting eco‑conscious consumers who compost at home. Requires complete biodegradation within 12 months under ambient home composting conditions (no industrial equipment).
• OK Compost INDUSTRIAL (TÜV Austria) – Certified for industrial composting — European market gold standard.
• EN 13432 (EU) – Compliant with European packaging compostability standard — mandatory for EU market access. Requires 90% biodegradation within 6 months and full disintegration within 12 weeks.
• AS 4736 & AS 5810 (Australia) – Certified for Australian commercial and home composting standards — ready for local compliance.
• ISO 9001:2015 – Quality management system certified — ensures consistent quality across every batch, giving procurement teams confidence in supply reliability.
• 100% Plant‑Based & GMO‑Free – NO polyethylene, NO toxic additives, NO phthalates, NO BPA — made from cornstarch, PLA, and PBAT, all derived from renewable resources. Our product inputs are free of GMO material, providing freedom from toxic chemicals.
• Storage Recommendations – Despite being biodegradable, compostable mailer bags can maintain their toughness and durability for months or even years under proper storage conditions (such as a cool and dry place). Store in a cool, dry place away from direct sunlight, high temperatures (above 40°C/104°F), and high humidity. Shelf life is up to 12 months under proper storage conditions. After packaging is broken or opened, use bags as soon as possible. Control stock based on first‑in‑first‑out principle.

Applications of Compostable Mailer Bags Wholesale

• E‑commerce & DTC Brands: Perfect for online retailers shipping apparel, accessories, books, cosmetics, and small electronics. Lightweight design reduces shipping costs while maintaining a premium unboxing experience. Available with custom logo printing to build brand recognition with every delivery.
• Fulfillment Centers & 3PL Operators: Reliable, high‑volume supply for logistics operators serving eco‑conscious merchants. Bulk pricing and consistent quality keep your fulfillment operations running smoothly. Our mailers work with standard packing workflows — no equipment modifications required.
• Banks & Financial Institutions: Opaque, waterproof construction for securely transporting sensitive and confidential documentation. Professional appearance builds client trust. The non‑see‑through design ensures privacy and security for sensitive shipments.
• Subscription Box Services: Custom‑printed mailers that reinforce brand identity with every delivery — ideal for monthly boxes, meal kits, and curated packages. Dual‑seal return mailer options available for subscription services with frequent returns.
• Marketplace Sellers (Amazon, Etsy, eBay): Meet marketplace sustainability requirements while protecting your products during transit. Custom branding helps you stand out from competitors and communicates your commitment to eco‑friendly shipping.

Global Compostable Mailers Market Outlook

According to industry research:

• The global compostable mailers market was valued at approximately USD 1.56 billion in 2024 and is projected to reach USD 7.47 billion by 2035, growing at a CAGR of 15.3%.
• The global e‑commerce packaging market was valued at USD 80.3 billion in 2025 and is projected to reach USD 172.2 billion by 2034, at a CAGR of 8.9%.
• The global mailer packaging market is projected to reach USD 14.35 billion by 2035, expanding at a CAGR of 4.1%.
• Major trends driving this growth include: increasing plastic bag bans in over 130 countries worldwide, the rise of eco‑conscious consumerism (over 70% of consumers prefer businesses that use sustainable packaging), corporate sustainability commitments driving demand for verifiable eco‑friendly packaging solutions, and the expansion of e‑commerce driving demand for sustainable shipping supplies.

This represents a significant business opportunity for e‑commerce brands, fulfillment centers, logistics operators, and packaging distributors making the switch to certified compostable mailer bags — and HEMCBags is your ideal wholesale supplier and manufacturing partner.

Frequently Asked Questions (FAQ)

Q1: What is the minimum order quantity (MOQ) for compostable mailer bags wholesale?
A: Standard MOQ starts from 10,000 pieces for standard sizes. For custom orders (custom printing, custom sizes, dual‑seal return mailers), MOQ is typically 10,000‑20,000 pieces. For weight‑based orders, MOQ starts from 500 kg. Sample orders available for quality testing (500‑1,000 pieces). ORIZON’s MOQ for mailer bags is 15,000 bags.

Q2: What certifications do your compostable mailer bags hold?
A: Our compostable mailer bags are certified under BPI (ASTM D6400), EN 13432, OK Compost Home, OK Compost Industrial, and ISO 9001:2015 — covering US, EU, and international market compliance. Full documentation and certificates available upon request.

Q3: Are these bags truly waterproof? Will contents get damaged in the rain?
A: Yes. Our compostable mailer bags feature 100% waterproof construction that protects contents from rain, snow, and moisture during transit. This is essential for e‑commerce shipping where packages may be exposed to weather conditions. Your customers receive their orders in perfect condition — no weather‑related damage, no complaints.

Q4: Can the bags be custom printed with our brand logo?
A: Yes. We offer full custom printing using eco‑friendly, non‑toxic inks (gravure printing, up to 8 colors). Print your logo, brand name, return address, barcodes, or promotional messaging. Custom‑printed compostable mailer bags turn every shipment into a branding opportunity.

Q5: What is the difference between self‑adhesive and dual‑seal mailer bags?
A: Self‑adhesive mailer bags feature one adhesive strip for outbound sealing — ideal for standard e‑commerce shipping. Dual‑seal mailer bags (return mailers) feature two adhesive strips — one for outbound delivery and one for customer returns, simplifying reverse logistics.

Q6: What is your lead time for bulk orders?
A: Standard lead time: 15‑20 days for bulk orders depending on volume and customization. Sample orders: 3‑7 days. Expedited options available — contact us for urgent requirements.

Q7: Can I get a sample before bulk order?
A: Yes. We offer free existing samples (you pay shipping) or custom samples with your logo/design (small setup fee). Sample lead time: 3‑7 days. Sample quantity: 500‑1,000 pieces.

Q8: What payment terms do you accept?
A: T/T (bank transfer), L/C at sight, and for qualified regular customers, partial deposit with balance against B/L copy.

Q9: How should these bags be stored?
A: Store in a cool, dry place away from direct sunlight, high temperatures (above 40°C/104°F), and high humidity. Shelf life is up to 12 months under proper storage conditions. After packaging is broken or opened, use bags as soon as possible. Control stock based on first‑in‑first‑out principle.

Q10: How do these compare in cost to traditional plastic poly mailers?
A: Typically 20‑35% higher in material cost than conventional poly mailers. However, with plastic bag bans expanding globally and consumer preference shifting toward sustainable shipping (over 70% of consumers prefer eco‑friendly packaging), businesses that switch early gain competitive advantage, avoid compliance penalties, and attract eco‑conscious customers. The compostable mailers market is projected to reach USD 7.47 billion by 2035 — making the switch a strategic investment.

Our Sustainability Commitment

At HEMCBags, sustainability is not just a feature — it’s our mission. Our 100% plant‑based materials contain NO polyethylene, NO toxic additives, NO phthalates, and NO BPA. All our product inputs are free of GMO material, providing freedom from toxic chemicals. Our products are independently tested and certified for compostability by BPI, TÜV Austria, and other internationally recognized bodies. When you choose us as your compostable mailer bags wholesale supplier, you’re making a conscious choice to reduce plastic waste in e‑commerce shipping and protect our planet for future generations.

Ready to upgrade your e‑commerce shipping to certified compostable mailer bags? Contact Us for a Wholesale Quote or Request a Free Sample to test our quality today.