60% Cotton, 40% Polyester Imported Machine Wash Show your loyalty to the good guys with these men's navy blue graphic sleep pants! The Nightwing sleep pants feature a big, colorful graphic that has been professionally printed to ensure long-lasting print quality. The Batman fan apparel loungewear is a classic navy blue, and includes a drawstring waistband for maximum comfort and functionality. The sleep pants are made of 60% cotton and 40% Polyester. They can be machine washed in cold water with like colors, then tumble dried for easy care. The Nightwing character logo sleep pants are an officially licensed product, and make a perfect gift for a fan of Batman and DC Comics.