Verification Key to Credible Circular-Material Claims in Fashion Industry

The global shift from a linear “take-make-dispose” model toward more circular systems is gaining traction in the fashion sector, driven by consumer expectations, regulatory scrutiny, and material innovation. A recent article by SGS, published in October 2025, highlights how independent verification is playing a critical role in turning sustainability claims into credible, measurable action.

Circular Materials Gaining Ground

According to SGS, the market for circular fashion materials is now estimated at between six and seven and a half billion dollars, growing at approximately nine percent per year. Among the emerging solutions are biobased materials derived from agricultural by-products such as pineapple leaves, plant-based leathers made from cactus or mycelium, and blends combining synthetic and natural fibers. These alternatives reduce reliance on fossil-derived inputs and open new pathways for recyclability or compostability.

For materials decision-makers, this means not only selecting alternatives that perform commercially and functionally but also aligning with sustainability and circular-economy goals, such as reducing carbon footprint, increasing recycled content, and offering end-of-life options.

The Challenge of Greenwashing

While innovation is accelerating, credibility remains a key bottleneck. Brands introducing novel materials or recycled content must ensure that claims are substantiated, or risk being dismissed as greenwashing. SGS emphasises that scientific verification transforms claims into measurable evidence.

To meet this need, SGS in 2024 acquired Beta Analytic, a global leader in carbon-14 testing, enabling the company to apply internationally recognised standards for biobased and renewable-carbon measurement. Carbon-14 testing allows the quantification of renewable versus fossil-derived carbon in a material, providing robust proof of biobased origin.

Real-World Application and Case Study

One illustrative example involves a global footwear brand that replaced petroleum-based inputs with corn, cotton, and castor bean oil-based alternatives, achieving seventy-five percent biobased content in a new sneaker model. That figure was verified through carbon-14 analysis and became the first sneaker certified under the USDA BioPreferred Program in its category.

This case underlines the practical value of verification. Across the supply chain, from fiber or dye to packaging, brands can support circular-material claims with credible data. For manufacturers, this helps open access to retail channels and increases transparency for consumers. For investors and regulators, it clarifies that sustainability actions are not only aspirational but measurable.

Holistic Service Offering

SGS frames this shift within a broader service constellation under its “IMPACT NOW for sustainability” initiative, launched in late 2024. The initiative covers four pillars: circularity, climate, ESG assurance, and nature. Within the circularity pillar, SGS offers material-content testing, chemical-safety services, life-cycle analysis, and traceability audits.

For brands and supply-chain actors, this means:

• Material verification for biobased and recycled content

• Traceability solutions combining physical markers and digital tracking

• Performance and quality testing to ensure that sustainable alternatives meet functional standards

• Regulatory-compliance support across global markets

Implications for the Net-Zero and Circular-Economy Transition

For stakeholders concerned with the transition to net-zero and circular systems, several implications stand out.

Brands and retailers: Those investing in biobased or recycled-content products should budget not only for the materials themselves but also for independent verification. Verified claims can support market differentiation, meet regulatory demands, and strengthen consumer trust.

Material suppliers and innovators: Developing a new biobased polymer, leather substitute, or fiber blend is only part of the journey. Proving that the input is truly renewable or meets recycled-content thresholds is increasingly necessary for commercial uptake.

Investors and financiers: As capital flows into sustainable fashion, regenerative textiles, and circular supply chains, independent verification becomes a risk-mitigation tool. Market projections are more credible when tied to verifiable data.

Regulators and policy makers: As legislation tightens in sectors such as textiles, footwear, and consumer goods, verification services support compliance. Transparent material-claims verification may soon become standard or mandatory.

Consumers and procurement teams: With growing demand for traceability, third-party validation helps move beyond marketing claims. Procurement teams can use verification data when selecting suppliers or materials, and consumers increasingly expect transparency.

The Way Forward

Material innovation will continue to shape the circular-fashion movement, but credibility is key to achieving scale and impact. As SGS concludes, brands that invest in independent verification of their biobased and sustainable claims will not only reduce the risk of greenwashing but also enhance consumer trust, attract investment, and future-proof their businesses.

The central message for the net-zero agenda is clear: innovation alone is insufficient. To convert novel materials into real-world, low-carbon, circular solutions, stakeholders must also build robust measurement, verification, and transparency frameworks.

Source: www.sgs.com