An article of footwear is disclosed that includes an upper and a sole
structure secured to the upper. The sole structure includes a midsole
element, an upper sheet, and a lower sheet. The midsole element has an
upper surface and an opposite lower surface. In addition, the midsole
element defines a plurality of bores extending from the upper surface to
the lower surface. The upper sheet is secured to the upper surface and
extends over at least a portion of the bores. The lower sheet is secured
to the lower surface, and the lower sheet is positioned to correspond in
location with the upper sheet and extend under the portion of the bores.