ISTjs often have a very firm, solid figure, especially males. They keep their feet rooted to the ground giving the impression that they are sturdy and secure. Their heads are firmly fixed squarely to their shoulders and are practically immovable. Their necks appear to be inflexible so when they turn their head their shoulders usually follow. Their facial expressions are somewhat unemotional and show great concentration.
Male ISTjs often wear a moustache. If they do not have one then there probably is a logical reason for it, as in general they all agree that a moustache is a good idea. Their clothes are often clean, ironed and tidy. They follow strict styles, never being too flashy or extravagant. It is as if military uniforms were designed specifically for ISTjs. They take great care of their appearance and may criticise people who do not.