Unwavering support and unparalleled cushioning have helped push the hurricane to the top of the pile a new isofit upper cradles and guides the foot at every stride while an everun landing zone delivers shock attenuation and sets the foot up for an efficient transition the iso series of shoes are engineered to make you want to run isofit consists of a soft inner sleeve and floating support cage that combine to create a dynamic fit system that adapts to the shape and motion of your foot pwrgr