A tire tread, comprising: a length (L 20) extending in a longitudinal direction, the longitudinal direction being a circumferential direction when the tread is arranged on a tire; a width extending (W 20) in a lateral direction, the lateral direction being perpendicular to the longitudinal direction; a thickness (T 20) extending in a depthwise direction from an outer, ground-engaging side of the tread, the depthwise direction being perpendicular to both the longitudinal direction and the widthwise direction of the tread; a lateral sipe arranged within the tread, the sipe having a length (L 26) extending primarily in the direction of the tread width (W 20) and a width (W 26) extending perpendicular to the lateral sipe length (L 26), the sipe having a depthwise extension extending into the tread thickness (T 20) from a first terminal end to a second terminal end along a path (P D) by a height measured in the direction of the tread thickness (T 20), the first terminal end being arranged closest to the outer, ground-engaging side relative to the second terminal end, the path (P D) having an average inclination angle that is measured in the longitudinal direction of the tread relative to the depthwise direction, the average inclination angle being angled toward an intended forward rotating direction of the tread in the longitudinal direction as the path extends from the second terminal end towards the first terminal end, such that the first terminal end is located ahead of the second terminal end in the intended forward rotating direction of the tread, where the sipe width (W 26) is formed by a pair of opposing faces (44, 46) of the tread extending depthwise within the tread thickness (T 20), the sipe width (W 26) being variable and increasing as the sipe extends deeper into the tread thickness from the first terminal end and towards the second terminal end, whereby the sipe width (W 26) is configured to, at an unworn stage, close along at least a portion of the sipe depth during operation of a loaded tire whereby the pair of opposing faces (44, 46) contact, and whereby the sipe width (W 26) is configured to, at a worn stage, remain open during operation of the loaded tire whereby the pair of opposing faces (44, 46) remain spaced apart, where in the worn stage the tread thickness (T 20) is 25% worn at least along a portion of the tread, the lateral sipe having a width-to-height ratio associating the sipe width (W 26) to the sipe height, the width-to-height ratio equaling 1:10 to 1:40. a length (L 20) extending in a longitudinal direction, the longitudinal direction being a circumferential direction when the tread is arranged on a tire; a width extending (W 20) in a lateral direction, the lateral direction being perpendicular to the longitudinal direction; a thickness (T 20) extending in a depthwise direction from an outer, ground-engaging side of the tread, the depthwise direction being perpendicular to both the longitudinal direction and the widthwise direction of the tread; a lateral sipe arranged within the tread, the sipe having a length (L 26) extending primarily in the direction of the tread width (W 20) and a width (W 26) extending perpendicular to the lateral sipe length (L 26), the sipe having a depthwise extension extending into the tread thickness (T 20) from a first terminal end to a second terminal end along a path (P D) by a height measured in the direction of the tread thickness (T 20), the first terminal end being arranged closest to the outer, ground-engaging side relative to the second terminal end, the path (P D) having an average inclination angle that is measured in the longitudinal direction of the tread relative to the depthwise direction, the average inclination angle being angled toward an intended forward rotating direction of the tread in the longitudinal direction as the path extends from the second terminal end towards the first terminal end, such that the first terminal end is located ahead of the second terminal end in the intended forward rotating direction of the tread, where the sipe width (W 26) is formed by a pair of opposing faces (44, 46) of the tread extending depthwise within the tread thickness (T 20), the sipe width (W 26) being variable and increasing as the sipe extends deeper into the tread thickness from the first terminal end and towards the second terminal end, whereby the sipe width (W 26) is configured to, at an unworn stage, close along at least a portion of the sipe depth during operation of a loaded tire whereby the pair of opposing faces (44, 46) contact, and whereby the sipe width (W 26) is configured to, at a worn stage, remain open during operation of the loaded tire whereby the pair of opposing faces (44, 46) remain spaced apart, where in the worn stage the tread thickness (T 20) is 25% worn at least along a portion of the tread, the lateral sipe having a width-to-height ratio associating the sipe width (W 26) to the sipe height, the width-to-height ratio equaling 1:10 to 1:40.