Israel IDF Military Police Corps Beret Mishtara Tzav'it

The outer shell is made of cotton, the inner part of the beret has a polyester cover.
Blue in color, representing the Police Corps unit.
One size fits all. 

Berets are worn by Israel Defense Forces soldiers only on formal occasions, including ceremonies and roll calls. 

The Military Police Corps of the Israel Defense Forces "Mishtara Tzav'it" is the Israeli Military Police and provost. The military police serve the Manpower Directorate during peacetime, and the Technological and Logistics Directorate during the war. 

The military police is a brigade-sized unit of about 4500. It is responsible for various law enforcement duties, including aiding IDF commanders in enforcing discipline, guarding the military prisons, locating deserters, investigating crimes committed by soldiers, and helping man the Israeli checkpoints in the Palestinian territories. 

The corps puts an emphasis on discipline and follows the principle of A Choice in Life, which says no to traffic accidents, narcotics, alcohol, suicide, and improper use of weapons.