An article of footwear having an upper and a sole structure secured to the upper, the sole structure comprising: a chamber that encloses a pressurized fluid, the chamber having a first surface, a second surface, and a sidewall surface, the first surface being oriented to face toward upper, the second surface being located opposite the first surface and oriented to face away from the upper, and the sidewall surface extending between the first surface and the second surface and around at least a portion of the chamber, the first surface and the second surface defining a plurality of elongated subchambers oriented in a direction that extends between a lateral side of the article of footwear and an opposite medial side of the article of footwear, the first surface and the second surface being joined to each other between at least two of the subchambers to form a plurality of bonds oriented in the direction that extends between the lateral side of the article of footwear and the medial side of the article of footwear, wherein end areas of the bonds are spaced from the sidewall surface, and the second surface defining indentations at the bonds, the indentations extending past the ends areas of the bonds such that each indentation extends entirely across the chamber and from a portion of the sidewall surface located on the lateral side of the article of footwear to a portion of the sidewall surface located on the medial side of the article of footwear; wherein the bonds with the indentations at the bonds alternate with bonds without indentations along the second surface in a direction extending between a heel region and a forefoot region of the chamber. a chamber that encloses a pressurized fluid, the chamber having a first surface, a second surface, and a sidewall surface, the first surface being oriented to face toward upper, the second surface being located opposite the first surface and oriented to face away from the upper, and the sidewall surface extending between the first surface and the second surface and around at least a portion of the chamber, the first surface and the second surface defining a plurality of elongated subchambers oriented in a direction that extends between a lateral side of the article of footwear and an opposite medial side of the article of footwear, the first surface and the second surface being joined to each other between at least two of the subchambers to form a plurality of bonds oriented in the direction that extends between the lateral side of the article of footwear and the medial side of the article of footwear, wherein end areas of the bonds are spaced from the sidewall surface, and the second surface defining indentations at the bonds, the indentations extending past the ends areas of the bonds such that each indentation extends entirely across the chamber and from a portion of the sidewall surface located on the lateral side of the article of footwear to a portion of the sidewall surface located on the medial side of the article of footwear; wherein the bonds with the indentations at the bonds alternate with bonds without indentations along the second surface in a direction extending between a heel region and a forefoot region of the chamber.