Article of footwear including a heel stabilizing element

A sole structure for an article of footwear comprising:

• a first cushioning element configured to extend from a posterior end of the article of footwear to an anterior end of the article of footwear, the first cushioning element including a first surface;
• a second cushioning element configured to extend from a mid-foot region of the article of footwear to the posterior end, the second cushioning element being formed of a different material than the first cushioning element;
• a shell directly coupled to the first surface of the first cushioning element, the shell including a body and a plurality of circumferentially-spaced apart protrusions forming a first concave surface and extending away from the body of the shell toward at least one of the first cushioning element or the second cushioning element and toward a ground surface when the sole structure is positioned in the article of footwear and the article of footwear is in an upright configuration, wherein the plurality of circumferentially-spaced apart protrusions are separated by a gap extending between adjacently disposed protrusions and separating the body of the shell from the first cushioning element, and each of the plurality of protrusions is directed coupled to the second cushioning element;
• and
• a heel counter coupled to the shell, the heel counter including a body and a plurality of protrusions forming a second concave surface, wherein the first concave surface of the shell is aligned with the second concave surface of the heel counter, the heel counter is adjacent the first cushioning element and configured to be disposed in the heel region of the article of footwear, and each protrusion of the heel counter is disposed within the shell.