Batman Mens Black Heather Sleep Pants 60% Cotton/40% Polyester 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. Regular adult men's sizes Officially licensed Batman apparel Printed and Designed by Bioworld Features the Batman logo on black heather sleep pants Soft and comfortable enough to sleep in, but you'll want to wear them all day long!