An article of footwear, comprising: a sole member having an outwardly facing surface and an inwardly facing surface disposed opposite of the outwardly facing surface, wherein the outwardly facing surface is disposed further from a foot than the inwardly facing surface when the article of footwear is worn; the sole member including a plurality of holes extending from the outwardly facing surface to the inwardly facing surface; a plurality of protruding members, each of the plurality of protruding members including a proximal end portion and a distal end portion, wherein the distal end portion is disposed further from the foot than the proximal end portion when the article of footwear is worn; a plurality of connecting portions, wherein the plurality of connecting portions connects the plurality of protruding members to one another; a portion of each protruding member of the plurality of protruding members being disposed within a corresponding hole of the plurality of holes of the sole member; at least one protruding member having a first position wherein the proximal end portion of the at least one protruding member is disposed a first distance from the inwardly facing surface of the sole member; the at least one protruding member having a second position wherein the proximal end portion of the at least one protruding member is disposed a second distance from the inwardly facing surface of the sole member and wherein the at least one protruding member extends away from the sole member in the second position; wherein the proximal end portion is disposed closer to the inner surface of the sole member than the distal end portion when the at least one protruding member is in the first position; and wherein the second distance is greater than the first distance; and wherein the inwardly facing surface of the sole member includes a plurality of recesses that are sized and oriented to fit the plurality of connecting portions. a sole member having an outwardly facing surface and an inwardly facing surface disposed opposite of the outwardly facing surface, wherein the outwardly facing surface is disposed further from a foot than the inwardly facing surface when the article of footwear is worn; the sole member including a plurality of holes extending from the outwardly facing surface to the inwardly facing surface; a plurality of protruding members, each of the plurality of protruding members including a proximal end portion and a distal end portion, wherein the distal end portion is disposed further from the foot than the proximal end portion when the article of footwear is worn; a plurality of connecting portions, wherein the plurality of connecting portions connects the plurality of protruding members to one another; a portion of each protruding member of the plurality of protruding members being disposed within a corresponding hole of the plurality of holes of the sole member; at least one protruding member having a first position wherein the proximal end portion of the at least one protruding member is disposed a first distance from the inwardly facing surface of the sole member; the at least one protruding member having a second position wherein the proximal end portion of the at least one protruding member is disposed a second distance from the inwardly facing surface of the sole member and wherein the at least one protruding member extends away from the sole member in the second position; wherein the proximal end portion is disposed closer to the inner surface of the sole member than the distal end portion when the at least one protruding member is in the first position; and wherein the second distance is greater than the first distance; and wherein the inwardly facing surface of the sole member includes a plurality of recesses that are sized and oriented to fit the plurality of connecting portions.