A tire includes sipes, on a surface of a tread of the tire, extending towards the direction of tire rotation from the tread edge side to the tire equator side of the surface of the tread. The sipes are disposed at intervals in the circumferential direction of the tread. In each of the sipes disposed at the tread edge side, a plane that follows the shape of the opening of the sipe and extends in the tire radial direction from the opening is defined as a reference plane, and each of the sipes disposed at the tread edge side is formed to include an extending portion that extends along the reference plane in the tire radial direction from the opening and a protruding portion that protrudes from the reference plane towards the direction of tire rotation and returns to the reference plane via a bend.