Sustainability claims on packaging are increasingly enforced rather than assumed. The useful distinction is between what is true, what you can evidence, and what you are allowed to print.
Reusable
The strongest genuine advantage of fabric packaging over single-use alternatives, and the easiest to substantiate — a pouch that is durable and attractive enough to keep does get kept. It is also a design outcome rather than a material one: reuse depends on the pouch being pleasant and useful, not on the fabric being natural.
If reuse is the claim, design for it. A pouch that is obviously packaging gets discarded; one that works as a storage or travel item does not.
Recyclable
Harder than it looks. A pure single-fibre pouch is more recyclable than a mixed-fibre one, and any pouch with mixed materials — fabric plus a plastic zip, plus a metal snap, plus a printed synthetic label — is realistically not recyclable through normal streams.
If recyclability matters, it has to drive the construction: single fibre where possible, minimal hardware, and decoration methods that do not introduce a second material. That is a specification decision made early, not a label applied late.
Organic and certified
These are documentation claims, not material claims. Organic fabric options are available here, but a claim on pack needs a certification chain you can produce on request — which means confirming, before you commit artwork, which certification your market requires and whether it can be supplied for your specific fabric and volume.
Say which certification you need in the inquiry. "Organic" alone is not specific enough to check.
Where the real impact sits
Two unglamorous things matter more than material choice for most programs. First, sizing: an oversized pouch wastes fabric on every unit, and that waste dwarfs the difference between fabric types. Second, over-ordering — packaging produced and never used is the largest waste there is, and it is a forecasting decision, not a materials one.
Claiming carefully
A specific, modest, evidenced claim survives scrutiny. A broad one does not. "Reusable cotton pouch" that is demonstrably reusable is safer and more credible than "eco-friendly packaging", which means nothing and invites challenge. Where you cannot evidence a claim, describing the material factually is usually enough — buyers can draw their own conclusion from "unbleached cotton, no plastic components".