What Is Spandex Made Of? Fiber Chemistry & Fabricação (2026 Guia)

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What Is Spandex? Spandex, also known as elastane, is an elastomeric fiber known for its exceptional stretch and recovery. Chemically, it’s a polyurethane-based copolymer, defined by industry standards as containing at least 85% polyurethane. This synthetic fiber provides fabrics with flexibility and shape retention, used widely in activewear and stretch garments. This guide details spandex’s […]