A tire tread comprising: a length (L 10 ) extending in a lengthwise direction, the lengthwise direction being a circumferential direction when the tread is arranged on a tire; a width (W 10 ) extending in a lateral direction, the lateral direction being perpendicular to the lengthwise direction; a thickness (T 10 ) extending in a depthwise direction from an outer, ground-engaging side of the tread , the depthwise direction being perpendicular to both the lengthwise direction and the widthwise direction of the tread; a plurality of sipes each having a length (L 14 ) extending at least partially in a direction of the tread length (L 10 ) or width (W 10 ), a height (H 14 ) extending at least partially in a direction of the tread depth (T 10 ) and perpendicular to the tread length (L 10 ), and a thickness (T 14 ), each sipe arranged between opposing sides of the tread within the tread thickness (T 10 ) to define the sipe thickness (T 14 ), characterized in that at least one of the opposing sides of the tread definingeach sipe thickness (T 14 ) includes a plurality of projections , the plurality of projections being spaced apart and each having a height measuring 0.025 to 0.375 millimeters, where one or more of the opposing sides of the sipe thickness (T 14 ) includes a plurality of recesses , the plurality of recesses being spaced apart and each having a depth measuring 0.025 to 0.375 millimeters, where the plurality of projections and recesses are arranged in an alternating arrangement within a plurality of rows, where adjacent rows are shifted relative each other such that each projection in any row is arranged adjacent to one of the plurality of recesses in each adjacent row. a length (L 10 ) extending in a lengthwise direction, the lengthwise direction being a circumferential direction when the tread is arranged on a tire; a width (W 10 ) extending in a lateral direction, the lateral direction being perpendicular to the lengthwise direction; a thickness (T 10 ) extending in a depthwise direction from an outer, ground-engaging side of the tread , the depthwise direction being perpendicular to both the lengthwise direction and the widthwise direction of the tread; a plurality of sipes each having a length (L 14 ) extending at least partially in a direction of the tread length (L 10 ) or width (W 10 ), a height (H 14 ) extending at least partially in a direction of the tread depth (T 10 ) and perpendicular to the tread length (L 10 ), and a thickness (T 14 ), each sipe arranged between opposing sides of the tread within the tread thickness (T 10 ) to define the sipe thickness (T 14 ), characterized in that at least one of the opposing sides of the tread definingeach sipe thickness (T 14 ) includes a plurality of projections , the plurality of projections being spaced apart and each having a height measuring 0.025 to 0.375 millimeters, where one or more of the opposing sides of the sipe thickness (T 14 ) includes a plurality of recesses , the plurality of recesses being spaced apart and each having a depth measuring 0.025 to 0.375 millimeters, where the plurality of projections and recesses are arranged in an alternating arrangement within a plurality of rows, where adjacent rows are shifted relative each other such that each projection in any row is arranged adjacent to one of the plurality of recesses in each adjacent row. <EOS>