Provided is a supporter that has an appropriate bending property and is inhibited from excessively bending A supporter (4) includes a base (41), a plurality of grooves (42) that are provided in the width direction of the base (41), fillers (43) that can be respectively inserted into the grooves (42), and disconnection preventing lips (44) for the fillers (43). The fillers (43) each have a small protrusion (49) that extends downward, the base (41) has a through hole (45) or a depression in each of the grooves (42) , and the small protrusion (49) and the through hole (45) can be fitted to each other and freely move to such an extent that they do not separate from each other.