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...http://www.google.com/patents/US7533477?utm_source=gb-gplus-sharePatent US7533477 - Article of footwear with a sole structure having fluid-filled support elements
