comparison to the United States'? I wear a size 11 tennis shoe in American sizes, this allows my foot ample room to breath while being tight enough to wear, this being the case, might I inquire as to what size of East German jackboot (Marschstiefel) I should wear? I am looking into Nationale Volksarmee officers' boots for a costume and am having difficulties knowing what size to buy. Should I buy my regular size in tennis shoe or size up? Perhaps down? Any answers would b greatly appreciated.