To vary flexibility of a footwear sole structure in a specific part.

The footwear includes an upper and a footwear sole structure fixed to the upper. The footwear sole structure has a foamed polymer element having a joint and a plurality of discontinuous footwear sole elements extending downward from the joint. The footwear sole elements are separated by a plurality of sipes extending upward into the footwear sole structure. The sipes include at least one sipe extending in a direction of the axis of a longitudinal direction of the footwear and a plurality of additional sipes extending in a substantially vertical direction relative to the axis of the longitudinal direction. The connecting part has the first thickness in an anterior area of the footwear, the second thickness in a middle area of the footwear, the third thickness in the heel area of the footwear, and the first and the third thicknesses are smaller than the second thickness.