Tracksuit polyester spandex fabric combines 80–95% polyester and 5–20% spandex, offering high elasticity (up to 500% stretch) for unrestricted movement. The blend ensures durability, wrinkle resistance, and quick-drying properties, ideal for athletic wear. Its interlock knit structure enhances breathability and minimizes edge curling, while moisture-wicking capabilities keep wearers dry during workouts. The fabric retains shape after repeated use and supports compression for muscle stability. Innovations include UV protection, antimicrobial treatments, and eco-friendly recycled polyester variants. Lightweight (200–300gsm) and machine-washable, it balances flexibility, comfort, and long-term performance for sportswear and casual apparel.