An article of footwear, including an upper and a sole structure, the sole structure including: an outer member; a plurality of ground engaging members (122, 200, 242, 244, 246, 248, 250, 252) disposed along a base portion of the outer member, the plurality of ground engaging members (122, 200, 242, 244, 246, 248, 250, 252) including a first ground engaging member (122, 200, 242, 244, 246, 248, 250, 252), a second ground engaging member (122, 200, 242, 244, 246, 248, 250, 252), and a third ground engaging member (122, 200, 242, 244, 246, 248, 250, 252); a plurality of panels (273, 296, 297, 298, 205, 202, 203) attached to the base portion of outer member, the plurality of panels (273, 296, 297, 298, 205, 202, 203) comprising at least a first panel (273, 296), the first panel (273, 296) being at least partially bounded by the first ground engaging member (122, 200, 242, 244, 246, 248, 250, 252), the second ground engaging member (122, 200, 242, 244, 246, 248, 250, 252), and the third ground engaging member (122, 200, 242, 244, 246, 248, 250, 252); wherein the sole structure at least partially comprises an auxetic structure, wherein the first ground engaging member (122, 200, 242, 244, 246, 248, 250, 252), the second ground engaging member (122, 200, 242, 244, 246, 248, 250, 252), and the third ground engaging member (122, 200, 242, 244, 246, 248, 250, 252) expand horizontally upon compression; and wherein the first ground engaging member (122, 200, 242, 244, 246, 248, 250, 252) moves about a first hinge portion (283, 285, 286, 287, 288, 289, 218, 219, 220, 221, 222, 223) relative to the first panel (273, 296) upon expansion of the first ground engaging member (122, 200, 242, 244, 246, 248, 250, 252), wherein the second ground engaging member (122, 200, 242, 244, 246, 248, 250, 252) moves about a second hinge portion (283, 285, 286, 287, 288, 289, 218, 219, 220, 221, 222, 223) relative to the first panel (273, 296) upon expansion of the second ground engaging member (122, 200, 242, 244, 246, 248, 250, 252), and wherein the third ground engaging member (122, 200, 242, 244, 246, 248, 250, 252) moves about a third hinge portion (283, 285, 286, 287, 288, 289, 218, 219, 220, 221, 222, 223) relative to the first panel (273, 296) upon expansion of the third ground engaging member (122, 200, 242, 244, 246, 248, 250, 252). an outer member; a plurality of ground engaging members (122, 200, 242, 244, 246, 248, 250, 252) disposed along a base portion of the outer member, the plurality of ground engaging members (122, 200, 242, 244, 246, 248, 250, 252) including a first ground engaging member (122, 200, 242, 244, 246, 248, 250, 252), a second ground engaging member (122, 200, 242, 244, 246, 248, 250, 252), and a third ground engaging member (122, 200, 242, 244, 246, 248, 250, 252); a plurality of panels (273, 296, 297, 298, 205, 202, 203) attached to the base portion of outer member, the plurality of panels (273, 296, 297, 298, 205, 202, 203) comprising at least a first panel (273, 296), the first panel (273, 296) being at least partially bounded by the first ground engaging member (122, 200, 242, 244, 246, 248, 250, 252), the second ground engaging member (122, 200, 242, 244, 246, 248, 250, 252), and the third ground engaging member (122, 200, 242, 244, 246, 248, 250, 252); wherein the sole structure at least partially comprises an auxetic structure, wherein the first ground engaging member (122, 200, 242, 244, 246, 248, 250, 252), the second ground engaging member (122, 200, 242, 244, 246, 248, 250, 252), and the third ground engaging member (122, 200, 242, 244, 246, 248, 250, 252) expand horizontally upon compression; and wherein the first ground engaging member (122, 200, 242, 244, 246, 248, 250, 252) moves about a first hinge portion (283, 285, 286, 287, 288, 289, 218, 219, 220, 221, 222, 223) relative to the first panel (273, 296) upon expansion of the first ground engaging member (122, 200, 242, 244, 246, 248, 250, 252), wherein the second ground engaging member (122, 200, 242, 244, 246, 248, 250, 252) moves about a second hinge portion (283, 285, 286, 287, 288, 289, 218, 219, 220, 221, 222, 223) relative to the first panel (273, 296) upon expansion of the second ground engaging member (122, 200, 242, 244, 246, 248, 250, 252), and wherein the third ground engaging member (122, 200, 242, 244, 246, 248, 250, 252) moves about a third hinge portion (283, 285, 286, 287, 288, 289, 218, 219, 220, 221, 222, 223) relative to the first panel (273, 296) upon expansion of the third ground engaging member (122, 200, 242, 244, 246, 248, 250, 252).