Sole structure for article of footwear

A sole structure for an article of footwear, the sole structure defining a footbed and comprising:

• a chassis including a lower cushioning element having an upper side and a bottom side disposed on an opposite side from the upper side to define a thickness of the lower cushioning element, the lower cushioning element including a plurality of apertures extending from the upper side to the bottom side;
• a bladder disposed adjacent to the upper side of the lower cushioning element;
• and
• an outsole disposed adjacent to the bottom side of the lower cushioning element and including a plurality of protrusions each extending through a respective one of the plurality of apertures, directly supporting the bladder, and being offset from one another in a direction extending along a longitudinal axis of the sole structure, each protrusion of the plurality of protrusions having a height equal to the thickness of the lower cushioning element such that the protrusions are flush with portions of the upper side of the lower cushioning element adjacent to the apertures.