Please visit his article on the South Park Archives for more information.
Stuart wears a greasy, faded jean jacket overtop of a white shirt, and mucky blue jeans. He also wears a red cap, with a yellow sign featuring the word "Scotch" embroidered on the front. His hair, mustache and beard are all a mousy-brown color. During the thirteenth season his design was re-polished like many other characters. When sleeping he wears dark blue pajamas.
Being a heavy alcoholic, Stuart is drunk most of the time. He is shown to often argue and abuse his wife, but it appears to go both ways, as Carol berates him without direct provocation. Although he and Carol have been shown physically abusing each other, it has never been shown or strongly implied that Stuart abuses his children. When he is sober he is very loving and caring to his wife.