invisible shirt

was watching ji gong zhuan

its a China show but a bit modern clothing (in compare with the ji gong we saw on tv donkey yrs ago)

it talking abt an invisible shirt which ppl cant see. The magistrate managed to get hold of it and went stealing from his townsmen...

if there is an invisible shirt, i think i not very keen to have it.
e shirt likely to bring more evil than good... so wat's e point of having it?