The Flash Classic Logo Men's Black T-shirt S Red and Black are 100% Cotton. Soft Athletic Grey is a Cotton/Polyester Blend. Machine washable. "Preshrunk" makes the fabric less likely to shrink, but it doesn't mean it won't shrink again, so dry low or air dry. The Flash Classic Logo Men's Black T-shirt S Officially Licensed DC Comics Printed and Designed by Bioworld Features the logo of The Flash! Great for fans of The Flash!