Tire tread and truck tire

A tire tread comprising a central region and first and second shoulder regions adjacent the central region is disclosed. At least one of the shoulder regions comprises a circumferential array of spaced apart shoulder sipes (52, 54), each of the shoulder sipes (52, 54) having a depth in an unworn tire tread condition within a depth range of from 1 mm to 3.5 mm. Each shoulder sipe (52, 54) comprises at least one sipe segment having a longitudinal axis oriented in a substantially axial direction within a range of between +/- 20 degrees of the tire axial direction.