The optional handgrip allows the photographer to hold the camera one-handed and provides a better grip and a steady handling of the camera. As known from the Leica M (Typ 240) the handgrip allows to attach three different sizes of finger Loops.
Hand grip for Leica X Vario (Typ 107)
Finger loop for handgrip - Size S
Finger loop for handgrip - Size M
Finger loop for handgrip - Size L