Abstract: In recent years, the rapid growth of national fitness, outdoor sports, and competitive sports has led to increasingly diverse and high-end functional demands for sportswear. Functional fibers, as a vital raw material for upgrading sports equipment, have continuously achieved technological breakthroughs in areas such as temperature and humidity management, antibacterial and deodorant properties, UV protection, anti-static performance, and stain resistance. Starting from the current needs of sportswear, this article systematically reviews the definition, classification, research progress, and industrial status of functional fibers, with a focus on their applications and development trends in sportswear. In the future, the integrated development of functionality and intelligence will become the new direction for functional fibers. Through the interdisciplinary integration of material science, nanotechnology, biology, and information technology, specialized equipment and sportswear that are responsive, efficient, and multifunctional are created.

Key words: sportswear; ergonomics; comfort; functionality; intelligence