A tire includes a tread portion. The tread portion includes two main grooves extending continuously in a tire circumferential direction and a land region defined between the two main grooves. The two main grooves extend in a zigzag manner with phases thereof aligned with each other. The land region is provided with a longitudinal sipe extending in the tire circumferential direction in a zigzag manner with a phase thereof opposite to the phases of the zigzags of the two main grooves.