What's the most sustainable mailer option for eCommerce?

There's no single most sustainable mailer, it depends on the waste infrastructure where your customers live. A 100% post-consumer recycled poly mailer is typically the lowest-carbon option and carries the strongest recycled-content claim in the category, backed by GRS transaction certificates. Certified home compostable mailers suit markets with weak soft-plastics collection, and FSC paper mailers are kerbside recyclable. We model all three with carbon and end-of-life data so you choose on evidence, not instinct.