Carbios says it has produced recycled polyester T-shirts from complex plastic and textile waste on industrial manufacturing lines in Europe, working with Patagonia, Puma and Salomon.

The French biotech company, headquartered in Clermont-Ferrand, describes the output as a validation of its enzyme-based recycling process across the full production chain: polymer production, spinning, knitting, dyeing and garment assembly. All stages ran on industrial-scale European lines rather than pilot equipment, according to the company.

The milestone follows three years of collaboration through Carbios' Fiber-to-Fiber Consortium, which counts the three brands among its partners. The consortium's remit is to prove that polyester recovered from hard-to-process textile and plastic waste streams can re-enter fibre production at commercial quality.

Carbios' process uses enzymes to depolymerise polyester, including from blended and complex waste that mechanical recycling typically cannot handle. For sourcing teams, the significance lies in the feedstock: if complex textile waste becomes a viable input for virgin-equivalent polyester, brands gain a domestic European supply option for recycled PET that does not depend on bottle-based feedstocks.

The company's claim of success across spinning, knitting, dyeing and garment assembly indicates the recycled material passed the performance requirements of each downstream tier — the tests that most recycled fibre innovations fail before reaching finished garments. Carbios itself reported the milestone; the three brands have not yet published independent confirmation of the results.

For buyers, the development is relevant on two fronts. First, EU textile strategy measures and extended producer responsibility schemes are tightening requirements on recycled content and end-of-life handling, making fibre-to-fibre recycling capacity in Europe a compliance asset. Second, recycled polyester supply remains constrained and concentrated in Asia, so a European industrial route adds a regional sourcing alternative.

The commercial decision the news forces is whether to qualify enzymatically recycled polyester in product lines now — through consortium participation or offtake commitments — or wait for independent validation and capacity scale-up. Brands under EU recycled-content pressure may find the cost of waiting higher than the cost of joining early.