Sports Vest Set: The top is made of 95% polyester and 5% spandex, and the pants are 100% polyester. This fabric combination offers excellent durability, quick-drying performance, and wrinkle resistance, allowing the clothes to quickly return to a dry state after exercise and stay neat. Whether in outdoor activities such as running, hiking, or cycling, its quick-drying, breathable, and comfortable properties can help the wearer better adapt to the outdoor environment.