Article of footwear including a sole structure

An article of footwear comprising:

• a forefoot region, a mid-foot region, a heel region opposite of the forefoot region, a medial side, and a lateral side opposite the medial side;
• a posterior end and an anterior end opposite the posterior end;
• an upper extending from the posterior end to the anterior end;
• and
• a sole structure extending from the posterior end to the anterior end, wherein the sole structure comprises:
• a midsole, wherein the midsole comprises a first partially enclosed cavity and a second partially enclosed cavity;
• a first thermoformed cushioning element disposed within the first partially enclosed cavity, wherein the first cushioning element comprises a first barrier film and a second barrier film enclosing an internal volume, and wherein the first barrier film and the second barrier film are coupled to one another at a center peripheral seam that extends along an outer surface of the cushioning element;
• a second cushioning element disposed within the second partially enclosed cavity, wherein the second cushioning element includes a third barrier film and a fourth barrier film enclosing an internal volume, wherein the third barrier film and the fourth barrier film are coupled to one another at a peripheral seam that extends along an outer surface of the cushioning element;
• one or more windows extending along an outer surface of the midsole;
• and
• an outsole, wherein the outsole forms a ground-engaging surface of the article of footwear.