I like my coffee mugs to bear the likeness of my favorite characters. I have my Howard the Duck coffee mug, the death metal Rainbow Brite mug, and of course this microwavable and dishwasher safe Batman Grey Costume Mug! It is probably my most socially acceptable coffee mug. That Rainbow Brite one just earns me cold stares and adverted eyes. Needless to say, that one stays home. Either way, the epic Batman Grey Costume Mug turns a regular coffee mug into DC Comics' Dark Knight, ready to protect the city of Gotham! Of course he may not be the Dark Knight if you add cream and sugar.