The Stretching Circularity Project is a c ollaborative initiative led by Fashion for Good to validate next-generati on elastane solutions that support a more circular textile economy. Elast ane is a critical but problematic fibre ? although it typically represent s a small percentage of a garment\, it is one of the most persistent barr iers to textile-to-textile recycling\, disrupting fibre recovery and push ing garments toward landfill or downcycling. The project brings together brands\, innovators\, supply chain partners and ecosystem experts to asse ss both bio-based and recycled elastane alternatives\, as well as technol ogies that enable elastane separation and recycling from blended textiles ? generating comparable data on performance\, environmental impact and c ommercial feasibility to reduce adoption risk and unlock circular elastan e solutions across apparel supply chains.