Unblocking circularity in textiles – bio-based synthetic fibers are the missing link in ESPR

Europe’s textile sector remains trapped in a linear system dependent on fossil-based synthetic fibers. Despite meaningful progress in circular design and waste reduction strategies, the source of textile material carbon is absent from ESPR’s textile criteria. This omission undermines ESPR’s life cycle ambition and risks locking in another decade of fossil dependency and external resource costs.

To truly move the needle, Europe must mandate minimum synthetic fiber content targets that combine recycled AND bio-based renewable carbon. A pragmatic milestone, such as a minimum 30% circular (recycled + bio-based) synthetic fiber content by 2030 is the single most powerful market-pull lever to unlock investment at scale, catalyze industrial innovation, and accelerate the transition to a truly circular textile economy.

The problem – linear economy, linear impacts

1. Fossil dominance persists

Nearly 60% of global textile fibers are synthetic, overwhelmingly fossil-derived.¹
According to Textile Exchange polyester alone accounts for roughly 57% of global fiber production.²
Only ~12% of polyester is recycled, and ~99% of that content comes from PET bottles, not post-consumer textiles, illustrating the gap in true textile-to-textile recyclability.³

2. Recycling infrastructure is years away

Textile-to-textile recycling remains limited due to fibre blends, poor collection systems, and underinvestment. Scaling this at commercial scale will take a decade or more.

3. Upstream impacts dominate

The latest EU JRC preparatory study⁴ confirms:

60–63% of total environmental impacts arise from raw material and fibre production.
Waste management contributes only 0.6–0.8% of life cycle impacts, not because waste is irrelevant, but because the system currently loses value and carbon upstream rather than circularizing it.

These facts demonstrate that closing the carbon loop upstream must be a priority, not an afterthought.

Unblocking circularity in textiles – bio-based synthetic fibers are the missing link in ESPR

Bio-based targets – the most powerful market pull lever

ESPR’s current focus on durability and waste reduction will help improve product longevity and end-of-life impacts. However, without addressing the origin of carbon in textile fibers, the upstream linearity remains unchallenged.

A strong market-pull measure is a mandatory minimum circular fiber content target – such as 30% circular (recycled + bio-based) synthetic fiber content by 2030.

A 30% target would:

1. Unlock strategic investment

Certainty drives capital. Clear targets will trigger industrial investment in:

Bio-based polymer production
Renewable feedstock supply chains
Circular chemical and mechanical recycling infrastructure

2. Reduce fossil dependence immediately

Bio-based solutions are commercially viable today and can reduce reliance on fossil feedstocks while recycling technologies scale.

3. Address competition for recycled plastics

Textiles increasingly compete with packaging for recycled PET feedstock. Incorporating a renewable content mandate eases this tension and creates differentiated pathways.

4. Deliver climate impact now

By substituting fossil carbon at scale, bio-based fibers address climate change impacts and reduce the upstream carbon burden identified in the JRC study.

Operationalizing circular carbon under ESPR

A minimum 30% circular synthetic fibre content target (recycled + bio-based) can be embedded directly in the ESPR textile delegated act as a product performance requirement.

Compliance can be ensured through Digital Product Passport reporting, robust mass balance accounting, and verified sustainability criteria for bio-based feedstocks.

This requirement complements existing ESPR durability and recyclability criteria by addressing what they currently omit: the origin of carbon in textile fibres.

A harmonized EU-wide threshold is proportionate, technically feasible, and necessary to prevent fossil lock-in. Without a carbon-origin requirement, ESPR textiles regulate circularity at the margins while leaving upstream fossil dependency untouched.

Aligning ESPR with Europe’s industrial, climate and circular economy ambitions

1. Make ESPR the engine of Europe’s circular transition

This approach bridges short-term industrial policy goals and long-term circular economy objectives. It aligns ESPR with EU Green Deal ambitions and bioeconomy strategies.

2. Unlock investment certainty and lead the next materials revolution

Clarity on renewable carbon targets, including a mandatory 30% circular content threshold by 2030, will de-risk investment, stimulate innovation, and support European competitiveness in advanced materials.

3. Move beyond recycling – enable a true circular economy

Bio-based content targets complement recycling and promote resource renewal, a key pathway to reducing life cycle impacts and building a truly circular system.

From fossil dependence to circular leadership

ESPR’s ambition is laudable, but incomplete without addressing the source of carbon in textile fibers. Only by mandating circular carbon content, including bio-based renewable sources, can Europe break the polyester bottleneck, unlock transformational investment, and deliver tangible circularity and climate outcomes by 2030.

Textiles can’t wait. The future of sustainable textiles is renewable, circular, and measurable, and it starts with a mandatory 30% circular (recycled + bio-based) synthetic fiber target in ESPR.

¹ https://textileexchange.org/knowledge-center/reports/materials-market-report-2025/
² https://textileexchange.org/knowledge-center/reports/materials-market-report-2025/
³ https://textileexchange.org/knowledge-center/reports/materials-market-report-2025/
⁴ https://susproc.jrc.ec.europa.eu/product-bureau/sites/default/files/2025-12/Textile-Prep-Study_3rd-Milestone_20251212.pdf