Сайерет Маткаль
Although Sayeret Matkal has its own insignia, it is also one of only two units in the IDF, the other being Duvdevan, whose soldiers are not allowed to wear it in public due to its classified nature. This lack of insignia often leads to Sayeret Matkal operators being recognized as such, as the fact that Matkal troopers don't wear insignia is well known.