True Siamese are medium in size, with a well-muscled body, not fat, and very lithe and graceful in action. The head is wedge-shaped, long and narrow, the ears broad at the base and small at the apex and very neat and well-defined. The legs are rather thin and not long; the hind legs are slightly longer than the forelegs. The feet are somewhat smaller than those of the domestic short-haired cat. The tail is thin and tapering and not very long.
A good many people think that Siamese cats have kinked tails. So learned a commentator as M. Oldfield Howey asserts in his fascinating book, The Cat in the Mysteries of Religion and Magic, that the kinked tail has been a Siamese characteristic for two hundred years. There is a Siamese legend which says that somebody once tied a knot in a cat's tail to remind it of something (perhaps to leave the throne room backward) and the knot stayed. Another form of the story is that a princess strung her rings on her cat's tail while she bathed, and tied a knot to keep them from falling off.
But the royal Siamese have no kinks. Any kinky-tailed Siamese in America were brought here by sailors who picked them up in the streets over there.