There’s nothing like a good brew to tempt the Dark Knight out of the Shadows! This heat change mug is perfectly suited for fans of the iconic Caped Crusader, the mug sees the comic book hero emerge from the darkness whenever a hot drink is added. With a 10 oz. capacity and black heat changing decal, this is a great gift even for the Dark Knight himself. The Batman Heat Change Mug is an officially licensed DC Comics product.