MATERIALS + CARE Washable Challis woven fabric: Your favorite easy-but-polished fabric..The lightweight, breathably soft fabric you love is, at last, wash, wear and go! Stretch level: None, except at waistband. 82% rayon, 18% polyester. Machine wash cold. Tumble dry low or line dry. Pull-on waist. Wide leg opening. Brand new with tag. Deep black is the name of the color and these are solid black. The camera adds a red tinge that isn’t there in person.