A sole structure for an article of footwear , the sole structure comprising: a ground-contacting outer member including a baseplate ; a first ground-engaging member including a first concave sidewall , a second concave sidewall, and a third concave sidewall, the first concave sidewall of the first ground-engaging member facing away from a peripheral edge of the baseplate ; a second ground-engaging member including a first concave sidewall, a second concave sidewall , and a third concave sidewall, the second concave sidewall of the second ground-engaging member facing away from the peripheral edge of the baseplate ; a third ground-engaging member including a first concave sidewall, a second concave sidewall, and a third concave sidewall , the third concave sidewall of the third ground-engaging member facing away from the peripheral edge of the baseplate ; a fourth ground-engaging member including two concave sidewalls and a fourth concave sidewall , the fourth concave sidewall of the fourth ground-engaging member facing away from a peripheral edge of the baseplate ; and a fifth ground-engaging member including two concave sidewalls and a fifth concave sidewall , the fifth concave sidewall of the fifth ground-engaging member facing away from the peripheral edge of the baseplate , wherein the ground engaging members are arranged in a heel region of the article of footwear and disposed proximate to the peripheral edge of ground-contacting outer member , wherein the ground-engaging members have a substantially triangular shape, and wherein the second ground-engaging member includes a lobe extending along an axis which is disposed at an angle with respect to the peripheral edge , the angle being a substantially perpendicular angle. a first ground-engaging member including a first concave sidewall , a second concave sidewall, and a third concave sidewall, the first concave sidewall of the first ground-engaging member facing away from a peripheral edge of the baseplate ; a second ground-engaging member including a first concave sidewall, a second concave sidewall , and a third concave sidewall, the second concave sidewall of the second ground-engaging member facing away from the peripheral edge of the baseplate ; a third ground-engaging member including a first concave sidewall, a second concave sidewall, and a third concave sidewall , the third concave sidewall of the third ground-engaging member facing away from the peripheral edge of the baseplate ; a fourth ground-engaging member including two concave sidewalls and a fourth concave sidewall , the fourth concave sidewall of the fourth ground-engaging member facing away from a peripheral edge of the baseplate ; and a fifth ground-engaging member including two concave sidewalls and a fifth concave sidewall , the fifth concave sidewall of the fifth ground-engaging member facing away from the peripheral edge of the baseplate , wherein the ground engaging members are arranged in a heel region of the article of footwear and disposed proximate to the peripheral edge of ground-contacting outer member , wherein the ground-engaging members have a substantially triangular shape, and wherein the second ground-engaging member includes a lobe extending along an axis which is disposed at an angle with respect to the peripheral edge , the angle being a substantially perpendicular angle. <EOS>