An article of footwear is disclosed that includes an upper and a sole
structure secured to the upper. The sole structure incorporates a support
element that includes a fluid-filled chamber, a first insert, and a
second insert. The chamber defines a first surface, an opposite second
surface, and a sidewall extending between the first surface and the
second surface. The first insert is secured to the first surface and at
least partially recessed into the polymer material of the chamber, and
the second insert is secured to the second surface. In addition, the
chamber may be pressurized to deform the first insert or the second
insert.