Tira Fibers is developing next-generation bio-elastomer fibers that unlock real circularity in apparel. Our flagship Bio-Stretch™ is a 100% bio-based, high-performance alternative to elastane that matches or exceeds stretch and recovery without harmful solvents or costly new equipment. Engineered as a true drop-in for existing spinning and knitting infrastructure, Bio-Stretch can be cleanly separated at end-of-life using a non-toxic, bio-based solvent, enabling textile-to-textile recycling of every component. The result: performance garments that meet regulatory goals and consumer expectations while cutting waste and lifecycle impact. We scale through a capital-efficient, partner-led model from polymer to yarn, collaborating with leading mills and global brands to deliver price parity as volumes grow. If you’re a brand, mill, or recycler seeking separable stretch and credible sustainability, let’s talk.

Tira Fibers

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Tira Fibers

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