Permatease, short for “permanent teasing," is a structural component placed in some wigs to give them lift and volume. Permatease is usually located on the top of the wig and is made up of short, matted fibers at the base of the cap. Longer hairs then sit over these shorter hairs to give it that lift. In longer wigs, the hair fiber at the root is lifted or crimped to hide the wefting and add volume. This built-in volume gives wigs a natural look and helps hide the wefting in open cap wigs.