Reusable Shopping Bags
Which material for which job
| Material | Best for | Typical load | Print methods | Minimum order | Certification | Relative unit cost |
|---|---|---|---|---|---|---|
| PP woven | Grocery and heavy daily use | 15 to 20 kg | Lamination, flexo, screen | 10,000 pcs | GRS on recycled PP (rPP woven) | Low |
| PP non-woven | Branded retail, pharmacy, promotions | Light to medium | Lamination, flexo, screen, heat transfer | 10,000 pcs | GRS on recycled PP (rPP non-woven) | Lowest |
| rPET | Documented recycled-content claims | Up to 18 kg | Lamination, screen, sublimation (on rPET non-woven), heat transfer | 10,000 pcs | GRS | Medium |
| Cotton and canvas | Brand perception, retail gifting, premium | Medium to heavy | Screen, heat transfer | 10,000 pcs | — | Medium to highest |
| Polyester | Foldable shoppers, totes, backpacks | Light to medium | Sublimation, screen, heat transfer | 5,000 pcs | GRS on recycled polyester | Medium |
Five reusable materials.
GRS, and what the certificate actually proves
The Global Recycled Standard (GRS) is a Textile Exchange standard. It follows recycled material from the recycler, through every company that handles it, to the finished bag. It verifies three things: that the recycled content is the percentage you were told, that the chain of custody is documented at every step, and that the sites in that chain meet social and environmental criteria.
A scope certificate and a transaction certificate are not the same document, and this is where buyers get caught out. A scope certificate says that a company has been audited and is approved to handle GRS material. It says nothing about your particular order. The document that covers your goods is a transaction certificate (TC), issued against your shipment and naming the quantity and the recycled percentage. Our certificate states this in its own footer: a scope certificate is not proof that the goods delivered are GRS certified.
So if a supplier sends you a scope certificate as proof for your order, that is not proof. Ask for the transaction certificate.
Our certificate
| Certificate holder | BKS CO.,LTD |
|---|---|
| Scope certificate number | IDF-26-1040972 (version 1) |
| Textile Exchange ID | TE-00345697 |
| Standard | Global Recycled Standard (GRS) version 4.0 |
| Product categories | Carried accessories, packaging, fabrics, greige fabrics, processed post-consumer materials, processed pre-consumer materials |
| Certification body | IDFL — Taiwan IDFL Laboratory and Institute Limited (licensing code CB-IDF) |
| Valid until | 29 June 2027 |
For a GRS claim on a finished bag, every company in the chain holds its own certification, and the transaction certificate is what ties that chain to your shipment.
Click the certificate to enlarge, or download the PDF. You can also verify it at TextileExchange.org/Certificates.
How it works on an order. Tell us at quotation stage that you need GRS documentation. It has to be planned into the material sourcing, not added afterwards. We confirm the recycled percentage the specification will carry, the material is bought against the certified chain, and the transaction certificate is issued for your shipment and sent with the export documents. If your sustainability or compliance team wants to see our scope certificate before then, it is above.