Tuxedo describes a coat pattern, not a breed. These bicolor cats, usually black and white, have a white chest like a shirtfront and often white paws, chin or a facial blaze; grey-and-white tuxedos exist too. The pattern comes from white spotting in the KIT gene, and because it isn't sex-linked, males and females are about equally common.
Most tuxedos are domestic shorthairs, though the pattern also turns up in breeds like the Maine Coon and Scottish Fold. Adults typically weigh 6 to 14 pounds and live 12 to 18 years. Color doesn't set personality, so each tuxedo has its own energy, coat length and history. In Gilbert, a dark coat soaks up sun, so a shady spot to rest matters.