The RDX Sports athletic shirt is manufactured with 100% Polyester material. The material absorbs less than one percent of moisture by weight, offers decent dimensional stability. Polyester is easy to machine wash and dry clean. It has excellent memory characteristics to retain its shape. And unlike natural fibers, it is non-allergenic and doesn’t promote the growth of bacteria. The tightly locked needle work ensures career lasting durability. Aerated back holes lets the heat escape quickly while keeping the shirt dry and your body fresh. Ideal for Gym training, Boxing, Sparring sessions, MMA, Cycling, Running Hiking and more.