Bio-based elastane for swimwear

A thin category — swimwear made with bio-based elastane rather than the recycled-synthetic fibers (ECONYL regenerated nylon) that dominate the broader 'sustainable swimwear' market — two confirmed vendors on distinct value-chain layers, a fabric mill and the first swimwear brand to adopt it commercially, after three screening passes repeatedly caught recycled-plastic products mislabeled as bio-based.