Polyester-spandex blend fabric with permanent UPF 50+ UV protection, verified via ASTM D6544 testing. Four-way stretch enhances mobility for dynamic movements, while breathable knit structure supports airflow during extended wear. Chlorine/saltwater-resistant fibers ensure durability in marine environments. Retains elasticity and sun-blocking properties after repeated washes. Ideal for high-exposure fishing apparel requiring lightweight flexibility and reliable UV defense.