An article of footwear, comprising: a sole having a lower surface exposed to the ground; a forefoot region of the article of footwear having a first forefoot section and a second forefoot section separated by a first flex groove; the first forefoot section including a first set of ground engaging members extending substantially downward from the lower surface of the sole, the first set of ground engaging members forming a substantially arcuate first arrangement; and the second forefoot section including a second set of ground engaging members extending substantially downward from the lower surface of the sole, the second set of ground engaging members forming a substantially arcuate second arrangement; wherein the first arrangement is curved in a different direction than the second arrangement; wherein each ground engaging member (185, 190, 195) of the first set of ground engaging members has a length extending along an arc; wherein the first flex groove is formed by an upwardly extending elongate recess in the lower surface of the sole; and wherein the substantially arcuate first arrangement of the first set of ground engaging members has a first concavity and the substantially arcuate second arrangement of the second set of ground engaging members has a second concavity oriented in an opposite direction and facing away from the first concavity; characterized in that the first concavity is oriented in a first generally lateral direction and the second concavity is oriented in a second generally medial direction; and the second set of ground engaging members includes two or more rows of stud-like ground engaging members having substantially the same shape. a sole having a lower surface exposed to the ground; a forefoot region of the article of footwear having a first forefoot section and a second forefoot section separated by a first flex groove; the first forefoot section including a first set of ground engaging members extending substantially downward from the lower surface of the sole, the first set of ground engaging members forming a substantially arcuate first arrangement; and the second forefoot section including a second set of ground engaging members extending substantially downward from the lower surface of the sole, the second set of ground engaging members forming a substantially arcuate second arrangement; wherein the first arrangement is curved in a different direction than the second arrangement; wherein each ground engaging member (185, 190, 195) of the first set of ground engaging members has a length extending along an arc; wherein the first flex groove is formed by an upwardly extending elongate recess in the lower surface of the sole; and wherein the substantially arcuate first arrangement of the first set of ground engaging members has a first concavity and the substantially arcuate second arrangement of the second set of ground engaging members has a second concavity oriented in an opposite direction and facing away from the first concavity; characterized in that the first concavity is oriented in a first generally lateral direction and the second concavity is oriented in a second generally medial direction; and the second set of ground engaging members includes two or more rows of stud-like ground engaging members having substantially the same shape.