The basic form of Kutubaru kebaya is quite similar to other types of kebaya. What distinguishes it is the additional fabric called "bef" to connect the left and right side of the kebaya in the chest and abdomen. This create a square or rectangle shaped collar. This type of kebaya was meant to recreate the look of unsecured kebaya wore over matching "kemben" (torso wrap) undergarment. Kebaya Kutubaru is believed to be originated from Central Java. Usually to wear this type of kebaya, "stagen" (cloth wrapped around the stomach), or rubber-enforced black corset is wore under the kebaya, thus the wearer will look more slender.