Abstract: A bladder for an article of footwear extends from an anterior end to a posterior end and includes a first chamber disposed in an interior region of the bladder and a second chamber at least partially surrounding the first chamber. The first chamber includes a first interior void having a first pressure and the second chamber includes a second interior void having a second pressure. In some implementations, the second chamber includes a plurality of lobes arranged in series and each having a first end, a second end, and an intermediate portion disposed between the first end and the second end. Each lobe has a greater thickness at the intermediate portion than at the first end and the second end, such that each lobe tapers from the intermediate portion to the first end and the second end.

Abstract: An article of footwear includes a sole structure having a chassis and a bladder. The chassis includes a cavity and a plurality of pillars extending into the cavity. The bladder is disposed within the cavity and includes one or more chambers. Each of one or more chambers is supported by at least one of the pillars. The chassis may include a first plurality of the pillars extending from a first side of the cavity and a second plurality of the pillars extending towards the first plurality of the pillars from a second side of the cavity, whereby the bladder is supported between the first plurality of the pillars and the second plurality of the pillars. The one or more chambers of the bladder includes an interior chamber and a peripheral chamber at least partially surrounding the interior chamber and the peripheral chamber has a different pressure than the interior chamber.