Sole structure of an article of footwear and related methods

An article of footwear comprising:

• an upper including a medial sidewall and a lateral sidewall spaced from the medial sidewall;
• and
• a sole structure, comprising:
• a first midsole portion including a first sidewall and a top surface;
• a second midsole portion including a second sidewall and a bottom surface;
• a first strip disposed between the top surface of the first midsole portion and the bottom surface of the second midsole portion and including a first surface and a second surface formed on an opposite side of the first strip than the first surface, a portion of the first surface of the first strip extending along the second sidewall of the second midsole portion and contacting at least one of the medial sidewall and the lateral sidewall of the upper;
• and
• a second strip disposed between the top surface of the first midsole portion and the bottom surface of the second midsole portion and including a first surface and a second surface formed on an opposite side of the second strip than the first surface of the second strip, the second strip being spaced apart from the first strip along a longitudinal axis of the sole structure, a portion of the first surface of the second strip extending along the second sidewall of the second midsole portion and contacting at least one of the medial sidewall and the lateral sidewall of the upper.