Like its counterpart the American shorthair, the American Wirehair is one of the most adaptable breeds for any type of household-from being the lap cat curled up with the senior citizen to the energetic cat joining in to play with the children. One of the natural breeds, the American Wirehair is a medium size cat, muscular with a firm, well-balanced body. The wirehair gene originated as a spontaneous coat mutation in upstate New York and changes the hard coat of the American Shorthair to the hard, dense, springy coat of the American Wirehair.