A sole component attachable to a bottom portion of an upper of an article of footwear , the sole component comprising a midsole having a medial side , a lateral side , a forefoot region , a midfoot region , and a heel region , the midsole comprising: an upper surface configured to face towards an interior of the article of footwear ; a lower surface configured to face towards a ground surface when the article of footwear is in contact with the ground surface; and a sidewall extending around a periphery of the midsole , wherein the sidewall comprises: (i) a first wall portion comprising a plurality of convex elements extending out from the sidewall , wherein at least one of a size or a shape of the plurality of convex elements varies over at least a portion of the first wall portion, (ii) a second wall portion comprising a plurality of concave elements extending into the sidewall , wherein the plurality of concave elements has a similar shape as the plurality of convex elements and at least one of a size or a shape of the plurality of concave elements varies over at least a portion of the second wall portion, and (iii) a transition region where the wall elements transition from being concave to convex ; wherein each of the convex elements and the concave elements extends from a respective base to a respective distal end wall , wherein for each element the area of said element at its base differs from the area of said element at its distal end wall ; and wherein the similar shape of the plurality of concave elements and the plurality of convex elements comprises a portion of a polyhedron. an upper surface configured to face towards an interior of the article of footwear ; a lower surface configured to face towards a ground surface when the article of footwear is in contact with the ground surface; and a sidewall extending around a periphery of the midsole , wherein the sidewall comprises: (i) a first wall portion comprising a plurality of convex elements extending out from the sidewall , wherein at least one of a size or a shape of the plurality of convex elements varies over at least a portion of the first wall portion, (ii) a second wall portion comprising a plurality of concave elements extending into the sidewall , wherein the plurality of concave elements has a similar shape as the plurality of convex elements and at least one of a size or a shape of the plurality of concave elements varies over at least a portion of the second wall portion, and (iii) a transition region where the wall elements transition from being concave to convex ; (i) a first wall portion comprising a plurality of convex elements extending out from the sidewall , wherein at least one of a size or a shape of the plurality of convex elements varies over at least a portion of the first wall portion, (ii) a second wall portion comprising a plurality of concave elements extending into the sidewall , wherein the plurality of concave elements has a similar shape as the plurality of convex elements and at least one of a size or a shape of the plurality of concave elements varies over at least a portion of the second wall portion, and (iii) a transition region where the wall elements transition from being concave to convex ; wherein each of the convex elements and the concave elements extends from a respective base to a respective distal end wall , wherein for each element the area of said element at its base differs from the area of said element at its distal end wall ; and wherein the similar shape of the plurality of concave elements and the plurality of convex elements comprises a portion of a polyhedron. <EOS>