Recycled Elastic Tapes & GRS Certification: ECI's Commitment to Closed-Loop Sourcing
As global brands extend their sustainability requirements beyond primary fabrics to every component in a garment, trims like elastic tapes, waistbands, and drawcords face the same sourcing scrutiny as shell fabrics. ECI now holds Global Recycled Standard (GRS) certification across all three of our manufacturing facilities—Vietnam (2024), Zhuhai (2025), and Taiwan (2026)—providing partners with documented, third-party verified proof that our recycled elastic products carry consistent, traceable credentials regardless of where they are produced.
What Is the Global Recycled Standard (GRS)?
The Global Recycled Standard (GRS) is an international, voluntary product standard administered by Textile Exchange, a global nonprofit dedicated to responsible fiber and materials sourcing. GRS sets requirements for third-party certification of recycled content, chain-of-custody documentation, social and labor practices, environmental management, and chemical restrictions across the entire supply chain.
GRS certification is not a self-declared claim. It requires independent verification at every stage of production—from the facility that processes post-consumer or post-industrial waste, through yarn spinning, weaving and knitting, dyeing and finishing, and through to the final product shipment.
Central to GRS is the concept of chain of custody: a documented, auditable record confirming that certified recycled materials have been properly identified, handled, and kept separate from non-certified inputs at every step. This is what gives the certification—and the recycled content claims on finished garments—their integrity.
Why Does This Matter for Elastic Trims Specifically?
Elastic tapes and narrow fabrics are the unsung elements of responsible supply chains. A brand can source a sustainably certified body fabric, but if the waistband elastic, the bra strap, or the fold-over trim is made from virgin polyester with no documentation, the garment's sustainability story has a gap in it.
This matters increasingly because major global brands are now applying their sustainability requirements beyond primary fabrics to all components, including trims. Sourcing leads at global sports brands have told us directly: the trims category is under growing scrutiny.
GRS-certified elastic tapes close that gap. When ECI's recycled products carry GRS certification, you can include our trims in your garment's total recycled content calculation—and defend that claim to auditors, consumers, and compliance teams.
GRS Certification Across All ECI Facilities
GRS certification has been implemented progressively across ECI's manufacturing network: ECI Vietnam in 2024, Zhuhai in 2025, and Taiwan in 2026. This means that GRS-certified recycled elastic tapes—primarily made from recycled polyester (R-PET) recovered from post-consumer plastic bottles and textile waste—can now be sourced from whichever ECI facility best fits a brand's regional supply chain requirements. This makes ECI one of the few vertically integrated elastic tape manufacturers worldwide to hold comprehensive GRS certification across its entire production network.
The certification covers ECI's full recycled product range: elastic tapes, binding tapes, waistbands, drawcords, and decorative trims—giving sourcing teams a single, certified supplier for every trim category in a sustainable collection.
Across all manufacturing facilities, GRS verification operates on the same standards and controls:
- Verified Recycled Input
The recycled fiber we source must itself be GRS-certified further up the chain. We don't simply purchase yarn labeled "recycled"—we verify certification documentation before it enters our facility.
- Chain-of-Custody Documentation
Every transaction involving GRS-certified materials—from procurement through production through shipping—is documented and auditable. ECI's vertical manufacturing model strengthens this further: by managing raw material selection, weaving, dyeing, finishing, and packaging entirely in-house, we eliminate the subcontractor handoffs where chain-of-custody gaps most commonly occur.
- Segregation During Production
GRS-certified materials are kept physically separate from non-certified inputs throughout production. This prevents blending or cross-contamination that would undermine the claim.
- Social and Environmental Requirements
GRS isn't purely a material standard. It also requires facilities to meet baseline requirements for social responsibility, wastewater management, and chemical use—areas where ECI already maintains additional certifications, including SLCP, Higg FEM, and ZDHC compliance.
Recycled Elastic at ECI: More Than One Way to Be Green
GRS certification is the external verification. But the commitment behind it has been building for years.
ECI's journey toward sustainable elastic manufacturing includes Oeko-Tex Standard 100 certification since 1999, Higg FEM environmental assessment since 2019, ZDHC chemical management compliance, and our broader investment in green manufacturing infrastructure. In 2023, we also joined the Chemical Management Platforms recognized by ZDHC.
GRS adds a specific, traceable dimension to this picture: the ability to certify not just how we manufacture, but what goes in.
For brands developing sustainable activewear, lingerie, or athleisure collections, this opens up real product-level storytelling. A GRS-certified fold-over elastic on a yoga pant. A GRS-certified waistband on a recycled-shell jacket. A GRS-certified bra strap contributing to the garment's total recycled content percentage on the hangtag.
These aren't small details. In a market where consumers and regulators alike are scrutinizing sustainability claims with increasing precision, every component with documented certification strengthens the whole garment's story.
A Practical Note for Sourcing Teams
If you're looking for recycled elastic tapes for an upcoming collection and need to verify GRS coverage, here's what to ask for new supplier:
- Is your GRS certificate current and publicly verifiable on the Textile Exchange database?
- Does your certificate cover the specific product type (woven elastic, knit elastic, fold-over, etc.) you need?
- Can you provide a transaction certificate (TC) for each shipment?
At ECI, we can provide all three—and our team is experienced in supporting the documentation requirements that major brands need to verify recycled content through their own compliance audits.
Looking Ahead: The Materials Matter Standard (MMS)
For sourcing teams and compliance leads keeping an eye on what comes next: Textile Exchange—the same body that administers GRS—published the criteria for its new Materials Matter Standard (MMS) in December 2025. MMS is designed as a unified framework that consolidates GRS, RCS, and other Textile Exchange standards into a single, more coherent system.
Under MMS, the core principles that make GRS valuable—chain-of-custody traceability, verification of recycled inputs, chemical and social safeguards—are carried forward and strengthened within a Tier 4 framework. GRS remains valid through the transition period, with MMS becoming voluntary from December 31, 2026, and mandatory from December 31, 2027.
ECI is actively monitoring this transition. With GRS certification now established across all three of our manufacturing facilities—and supported by our broader sustainability infrastructure across Higg FEM, ZDHC, and SLCP—we are well-positioned to align with MMS requirements as the industry moves toward this unified standard.
ECI Takeaway: Traceability Is the Product
At ECI, we've learned that in sustainable manufacturing, the documentation is part of the product. A recycled elastic tape without a verifiable paper trail is just a claim. A GRS-certified elastic tape is a proof. For us, this milestone goes beyond compliance—it reflects our dedication to creating sustainable value throughout our entire operation. Our 52-year journey has always been about building systems that can be trusted, and GRS certification across Vietnam, Zhuhai, and Taiwan is the clearest expression yet of that commitment applied to a circular textile economy.
Contact us to discuss GRS-certified elastic tape options for your next collection:
https://www.ecigroup-global.com/en/contact-us.html
Frequently Asked Questions
Q: What does GRS certification mean for elastic tapes?
A: GRS (Global Recycled Standard) certification verifies that elastic tapes contain genuine recycled content—typically recycled polyester from post-consumer plastic bottles—and that this content is traceable through every stage of production via chain-of-custody documentation.
Q: Can GRS-certified elastic trims count toward a garment’s total recycled content?
A: Yes. When elastic tapes carry GRS certification with a valid transaction certificate, they can be included in the garment’s total recycled content calculation, which is increasingly required for sustainability claims on hangtags and marketing materials.
Q: Which ECI facilities hold GRS certification?
A: All three ECI manufacturing facilities are GRS certified: Vietnam (since 2024), Zhuhai (since 2025), and Taiwan (since 2026). This means GRS-certified recycled elastic can be sourced from whichever facility best fits your supply chain.
Q: What is the Materials Matter Standard (MMS) and does it replace GRS?
A: MMS is Textile Exchange’s new unified framework that will consolidate GRS and RCS. GRS remains valid through the transition period, with MMS becoming voluntary from December 2026 and mandatory from December 2027. ECI is preparing for this transition.
Q: What recycled elastic products does ECI offer under GRS certification?
A: ECI’s GRS certification covers the full recycled product range: elastic tapes, binding tapes, waistbands, drawcords, fold-over elastic, and decorative trims—all made primarily from recycled polyester (R-PET).
