PNEUMATIC TIRE

In a pneumatic tire, high and low blocks with different heights are provided in a side region. High and low blocks adjacent in a circumferential direction form a block pair. The high and low blocks in the block pair are partially in contact with each other. A side groove between these blocks is a closed groove. In each block pair, contour lines including first, second and third linear portions, define edges on both sides in the tire circumferential direction, of a top surface of each of the high and low blocks. The first linear portions and one of the second linear portions or the third linear portions extend in an identical direction with an angle difference being equal to or smaller than 15 degrees. Other linear portions of the second linear portions or the third linear portions extend in different directions.