Knitted component with cushioning structure

A knitted component comprising:

• a first surface;
• a second surface opposite the first surface;
• a plurality of window openings each extending through the first surface and the second surface;
• and
• a cushioning structure positioned on the first surface and integrally knit with the first surface, wherein the cushioning structure is visible through at least one of the plurality of window openings when viewed from a side of the knitted component corresponding to the second surface of the knitted component.

A method of forming an upper for an article of footwear, the method comprising:

• knitting a main body portion of the upper from a first yarn, the main body portion comprising an exterior surface and an interior surface opposite the exterior surface;
• knitting a first cushioning structure integrally with the interior surface of the main body portion, wherein the first cushioning structure is formed of a single-jersey construction;
• and
• knitting a window region within the main body portion, wherein the window region is positioned to overlap a portion of the first cushioning structure that is unsecured to the main body portion when the main body portion is removed from a knitting machine.