What is the name of the bottom white unhemmed sheet worn by men in Ihram?

What is the name of the bottom white unhemmed sheet worn by men in Ihram?

احرام کی حالت میں مردوں کے پہننے والی نیچے والی سفید چادر کا کیا نام ہے؟
Explanation

Men's garments often consist of two white unhemmed sheets (usually toweling material) and are universal in appearance.

The top (the rida (Arabicرِدَاء)) is draped over the torso

The bottom (the izar (إِزَار)) is secured by a belt, plus a pair of sandals.