Why Focus on Mailers?
If you’re a small online seller, packaging is one of the most visible and fixable sources of waste in your operations. While shipping boxes get a lot of attention, mailers are often overlooked.
But they matter.
Mailers (poly, kraft, compostable) are lightweight, high-volume, and used daily across fashion, accessories, health products, stationery, and more. And the data proves their collective impact is massive:
The global compostable mailers market is expected to grow at 15.8% CAGR, reaching $5.4B+ by 2033 — driven by eCommerce and sustainability pressure.— DataIntelo 2024 Report
Trimming 10 grams of CO₂e per shipment across just 100,000 orders = 1 metric ton of emissions saved.— Ecopackables Sustainability Blog, 2024
Most conventional poly mailers are not recyclable curbside, and nearly 91% of plastic packaging still ends up in landfills or oceans.— EPA, Plastic Waste Data 2023
Small Shops, Big Impact If We Move Together
One sustainable mailer won’t change the planet but 1,000 small sellers using better mailers can. Here's how you drive real change:
Impact Area
Why It Matters
Aggregate Demand
Shared adoption lowers unit costs and increases supplier investment in sustainable materials.
Create New Norms
When eco-mailers become the norm, customer expectations shift and competitors follow.
Influence Supply Chains
Volume adoption pushes carriers and sorters to invest in composting or recycling solutions.
Avoid “Greenfluff”
A collective, transparent commitment builds credibility. Customers see it’s real, not marketing spin.
What Are Your Sustainable Mailer Options?
Eco doesn’t mean low-quality. Today’s advanced mailers combine environmental responsibility with performance.
Material
Benefit
Caveat
Recycled Poly Mailers (PCR)
Made from post-consumer plastic. Reduces virgin material demand.
Must be clearly labeled and recyclable in local streams.
Paper/Kraft Mailers
Compostable, recyclable, lightweight. Great for non-fragile goods.
Can lack water resistance.
Compostable Bioplastics (PLA, PBAT blends)
Industrial composting ready. Low plastic footprint.
Requires industrial composting—home compost may not work.
Hybrid Reinforced Kraft
Paper + biofilm layer. Strong, recyclable, and durable.
More complex to manufacture.
Your 6-Step Mailer Sustainability Guide
This guide will help you reduce your mailer-related emissions in just 30 days.
1. Audit Your Usage
Volume of mailers/month
Avg. weight per mailer
Return rate or customer issues
Material type (poly, paper, etc.)
Example: 2,000 orders/month × 20g mailer = 40kg packaging/month.
2. Switch to Sustainable Materials
Kraft mailers for lightweight products
Compostable or recycled poly for apparel or flexible goods
Reinforced kraft for heavier items
Target: Reduce mailer carbon footprint by 10g or more per shipment.
3. Right-Size Your Mailers
Oversized mailers increase carbon per shipment by up to 30%. Use mailers just big enough to fit your product with a snug buffer.
4. Educate Your Customers
“This mailer is 100% compostable, dispose in green bin.”
“Please reuse or recycle this packaging, let’s reduce waste together.”
🗣 Customers appreciate transparency, and many want to help.
5. Collaborate with Other Sellers
Join or create a sustainable seller collective.
Bulk-order mailers to reduce cost per unit.
Share supplier research and testing results.
The more sellers join, the cheaper and easier eco-mailers become.
6. Track and Share Your Impact
“We’ve reduced our packaging emissions by 300kg this year.”
“All our mailers are now 100% paper-based and home compostable.”
📈 Build customer trust and demonstrate leadership in sustainability.
A Look at the Numbers
Seller Type
Orders/Month
Mailer Type
Emissions Cut/Year
Solo Etsy Seller
500
Kraft
~150 kg CO₂e
Shopify Boutique
1,500
Compostable Bioplastic
~450 kg CO₂e
Amazon FBA Hybrid
5,000
PCR Recycled Poly
~1,000+ kg CO₂e
Multiply this by 1,000 sellers, and you get emissions savings in the hundreds of metric tons annually all without changing a product or shipping carrier.
Final Word: The Packaging Revolution Starts with You
You're not "just one small business." You’re part of a global ecosystem of independent creators, retailers, and innovators. If each of you makes better choices and you tell your customers why the supply chain will follow.
At TerraboardOnline.com, we’re proud to support this movement. If you're ready to transition your business to premium recyclable or compostable mailers, we’re here to help.
Let’s turn your small shop into a big driver of sustainable change.
Want to switch to recyclable mailers?
Contact us to start your sustainable packaging transformation
Or call one of our customer service representative at 502-810-1255