PUMA Women's Mobium Elite Speed Night Cat Running Shoe 100% Synthetic Imported MOBIUM BAND 3D - A finely-tuned elasticized band with 3 degrees of stretch, that runs from the outsole through the Windlass Chassis onto its top surface and then again hooks back outside the tooling. It works dynamically just like your foots tendons: the more force that is applied to it, the more spring it returns; EXPANSION PODS - provide targeted flexibility, and are designed to align closely with the foots bone structure so that it flexes at exactly the same place and in the same way that your foot does; Rubber sole Heel measures approximately 1.5" moveCELL designation for its highly flexible, adaptive design engineered to enhance and maximize your body's natural movement Expansion Pods located on the forefoot outsole provide cushioning, protection, and flexibility Finely tuned, elasticized Mobium Band runs through the outsole in a figure 8 pattern, working dynamically like your foot's tendons EverRide and EverTrack rubber at the outsole for added grip PUMA Cat logo at side, tongue, and heel