A sole structure for an article of footwear, the sole structure comprising: an outer member; a plurality of ground engaging members (122, 200, 242, 244, 246, 248, 250, 252, 276) extending away from a base portion of the outer member, the plurality of ground engaging members (122, 200, 242, 244, 246, 248, 250, 252, 276) including a first ground engaging member (122, 200, 242, 244, 246, 248, 250, 252, 276); the first ground engaging member (122, 200, 242, 244, 246, 248, 250, 252, 276) comprising at least a first arm portion (210, 254, 256, 278), the first arm portion (210, 254, 256, 278) comprising a first face and a second face, the first face and the second face joined along a first hinge portion, the first face attached to the outer member along a second hinge portion, the second face attached to the outer member along a third hinge portion; a free end of the first ground engaging member (122, 200, 242, 244, 246, 248, 250, 252, 276) being an apex (204, 266, 268, 270), wherein an end of the first face is associated with the apex (204, 266, 268, 270), and wherein an end of the second face is associated with the apex (204, 266, 268, 270); the first ground engaging member (122, 200, 242, 244, 246, 248, 250, 252, 276) including a first configuration and a second configuration, wherein the apex (204, 266, 268, 270) has a first height with respect to the base portion in the first configuration, wherein the apex (204, 266, 268, 270) has a second height with respect to the base portion in the second configuration; wherein the first hinge portion, the second hinge portion, and the third hinge portion facilitate the transition of the first ground engaging member (122, 200, 242, 244, 246, 248, 250, 252, 276) between the first configuration and the second configuration; and wherein the sole structure at least partially comprises an auxetic structure, and wherein the plurality of ground engaging members (122, 200, 242, 244, 246, 248, 250, 252, 276) are arranged on the outer member to provide the sole structure with the auxetic structure. an outer member; a plurality of ground engaging members (122, 200, 242, 244, 246, 248, 250, 252, 276) extending away from a base portion of the outer member, the plurality of ground engaging members (122, 200, 242, 244, 246, 248, 250, 252, 276) including a first ground engaging member (122, 200, 242, 244, 246, 248, 250, 252, 276); the first ground engaging member (122, 200, 242, 244, 246, 248, 250, 252, 276) comprising at least a first arm portion (210, 254, 256, 278), the first arm portion (210, 254, 256, 278) comprising a first face and a second face, the first face and the second face joined along a first hinge portion, the first face attached to the outer member along a second hinge portion, the second face attached to the outer member along a third hinge portion; a free end of the first ground engaging member (122, 200, 242, 244, 246, 248, 250, 252, 276) being an apex (204, 266, 268, 270), wherein an end of the first face is associated with the apex (204, 266, 268, 270), and wherein an end of the second face is associated with the apex (204, 266, 268, 270); the first ground engaging member (122, 200, 242, 244, 246, 248, 250, 252, 276) including a first configuration and a second configuration, wherein the apex (204, 266, 268, 270) has a first height with respect to the base portion in the first configuration, wherein the apex (204, 266, 268, 270) has a second height with respect to the base portion in the second configuration; wherein the first hinge portion, the second hinge portion, and the third hinge portion facilitate the transition of the first ground engaging member (122, 200, 242, 244, 246, 248, 250, 252, 276) between the first configuration and the second configuration; and wherein the sole structure at least partially comprises an auxetic structure, and wherein the plurality of ground engaging members (122, 200, 242, 244, 246, 248, 250, 252, 276) are arranged on the outer member to provide the sole structure with the auxetic structure.