GUPPYFRIEND Washing Bag
GUPPYFRIEND
Washing Bag
If your closet holds synthetics, this catches a real share of what they shed. It is still a plastic product, and the best filter is owning fewer synthetics.
A microfiber-catching laundry bag made, ironically, entirely of polyester. Useful harm reduction for synthetic wardrobes, and honestly documented.
How this score breaks down
Strengths
- Brand-reported Fraunhofer tests show 79 to 86% less fiber breakage
- Full component disclosure, everything named
- Patented and repairable, recyclable by type
Trade-offs
- Made entirely of polyester, the material it protects against
- Test reports are brand-reported, not published in full
- Collected lint still goes to the bin
Scored on our durable-goods method (durables-v1, 2026-07-12). How we rank →
What's inside
Untreated, undyed PET monofilament mesh with polyester tape, edging and zip, recyclable by type. Withstands 50 washes per ISO 6330 testing, per the brand.
| Part | Material |
|---|---|
| Mesh | PET polyester monofilament, untreated |
| Tape, edging, zip | Polyester |
Free of Additives, dyes, coatings on the filter fabric (stated untreated)
- Packaging
- Design and printing location stated; packaging material not stated
- Microplastics
- The bag exists to catch microfibers from synthetic laundry; it is itself made of PET monofilament the brand states does not lose microplastic. We do not repeat zero-shed claims for any polymer product
Attributes
What this product is, at a glance.
Certifications
None listed. We only show independent third-party certifications we can verify with the issuing body, and this product does not currently hold any.
About GUPPYFRIEND
GUPPYFRIEND is made by STOP! Micro Waste in Germany, with brand-reported Fraunhofer Institute testing behind its filtration claims.
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