Patent ID: 8001703

Claim:
An article of footwear having an upper and a sole structure secured to the upper, the sole structure comprising: a fluid-filled chamber having a first surface, an opposite second surface, and a sidewall extending between the first surface and the second surface, the first surface and the second surface being devoid of internal connections that secure interior portions of the first surface to interior portions of the second surface, and the sidewall being joined with the first surface and the second surface to seal the fluid within the chamber, the first surface, second surface, and sidewall defining a plurality of lobes extending radially-outward from a central area of the chamber, the lobes being in fluid communication with the central area, the lobes having distal ends positioned opposite the central area, and the lobes defining spaces positioned between the lobes located adjacent to each other, the central area having a first height between the first surface and the second surface, and the distal ends having a second height between the first surface and the second surface, the second height being greater than the first height; and a polymer foam material surrounding at least a portion of the chamber and extending into the spaces between the lobes, the polymer foam material defining a portion of a side surface of the sole structure, the distal ends of the lobes being exposed at the side surface and defining another portion of the side surface of the sole structure.