Abstract: An article of footwear includes an upper and a sole coupled to the upper. The sole includes an outsole to engage the ground, a midsole disposed above the outsole to support a foot of a wearer, and a heel support member disposed between the midsole and the outsole in a heel region of the sole. The sole includes a plurality of heel air chambers bounded by the midsole and the heel support member in the heel region of the sole. The heel air chambers are fluidly connected by a heel channel. The sole includes a plurality of sole air chambers bounded by a bottom surface of the midsole and an upper surface of the outsole. The sole air chambers are arranged from the heel region of the sole to a forefoot region. The sole includes a plurality of channels fluidly connecting the plurality of sole air chambers.

Abstract: An upper comprising a flexible layer configured to receive a foot, a bladder coupled to an outer surface of the flexible layer, and an inflation mechanism operatively coupled to the bladder for inflating the bladder such that the flexible layer is drawn toward the foot. The bladder extends from a lateral side in a heel region across a throat region to a medial side in the heel region. The bladder comprises a plurality of fluidly connected segments, each segment forming an angle with an adjacent segment.

Abstract: An upper comprising a flexible layer configured to receive a foot, a bladder coupled to an outer surface of the flexible layer, and an inflation mechanism operatively coupled to the bladder for inflating the bladder such that the flexible layer is drawn toward the foot. The bladder extends from a lateral side in a heel region across a throat region to a medial side in the heel region. The bladder comprises a plurality of fluidly connected segments, each segment forming an angle with an adjacent segment.