A tire comprising: a tread portion being provided with a first main groove (3 and a second main groove each extending continuously in a zigzag manner in the tire circumferential direction and a land region defined between the first main groove and the second main groove; the land region being provided with a longitudinal sipe extending in a zigzag manner in the tire circumferential direction, a plurality of first lug grooves extending between the longitudinal sipe and the first main groove, and a plurality of second lug grooves extending between the longitudinal sipe and the second main groove, the land region comprising a plurality of first blocks divided by the longitudinal sipe and the plurality of the first lug grooves, and a plurality of second blocks divided by the longitudinal sipe and the plurality of the second lug grooves; each of the first blocks and the second blocks being provided with not less than three transverse sipes extending across the entire width of the each of the first blocks and the second blocks; the first main groove comprising a first groove portion inclined with respect to the tire circumferential direction, a second groove portion inclined to an opposite direction to the first groove portion and connected with the first groove portion, a third groove portion inclined to an opposite direction to the second groove portion and connected with the second groove portion, and a fourth groove portion inclined to an opposite direction to the third groove portion and connected with the third groove portion; and the longitudinal sipe comprising a first sipe portion inclined with respect to the tire circumferential direction, a second sipe portion inclined to an opposite direction to the first sipe portion and connected with the first sipe portion, a third sipe portion inclined to an opposite direction to the second sipe portion and connected with the second sipe portion, and a fourth sipe portion inclined to an opposite direction to the third sipe portion and connected with the third sipe portion, characterized in that each of the first sipe portion, the second sipe portion, the third sipe portion, and the fourth sipe portion of the longitudinal sipe is inclined at an angle larger than each of the first groove portion, the second groove portion, the third groove portion, and the fourth groove portion of the first main groove with respect to the tire circumferential direction. a tread portion being provided with a first main groove (3 and a second main groove each extending continuously in a zigzag manner in the tire circumferential direction and a land region defined between the first main groove and the second main groove; the land region being provided with a longitudinal sipe extending in a zigzag manner in the tire circumferential direction, a plurality of first lug grooves extending between the longitudinal sipe and the first main groove, and a plurality of second lug grooves extending between the longitudinal sipe and the second main groove, the land region comprising a plurality of first blocks divided by the longitudinal sipe and the plurality of the first lug grooves, and a plurality of second blocks divided by the longitudinal sipe and the plurality of the second lug grooves; each of the first blocks and the second blocks being provided with not less than three transverse sipes extending across the entire width of the each of the first blocks and the second blocks; the first main groove comprising a first groove portion inclined with respect to the tire circumferential direction, a second groove portion inclined to an opposite direction to the first groove portion and connected with the first groove portion, a third groove portion inclined to an opposite direction to the second groove portion and connected with the second groove portion, and a fourth groove portion inclined to an opposite direction to the third groove portion and connected with the third groove portion; and the longitudinal sipe comprising a first sipe portion inclined with respect to the tire circumferential direction, a second sipe portion inclined to an opposite direction to the first sipe portion and connected with the first sipe portion, a third sipe portion inclined to an opposite direction to the second sipe portion and connected with the second sipe portion, and a fourth sipe portion inclined to an opposite direction to the third sipe portion and connected with the third sipe portion, characterized in that each of the first sipe portion, the second sipe portion, the third sipe portion, and the fourth sipe portion of the longitudinal sipe is inclined at an angle larger than each of the first groove portion, the second groove portion, the third groove portion, and the fourth groove portion of the first main groove with respect to the tire circumferential direction.