Saucony Hurricane running shoes offer unwavering support and cushioning. Features ISOFit, a soft inner sleeve which adapts to the runner's foot for create a dynamic fit which provides superior comfort. Everun Continuous Cushioning - a new material which is more lively and responsive than standard EVA. It also returns 83% of the energy absorbed to continually give back even at the end of the run when needed most. This is placed closer to the foot allowing it to shape to the foot distributing force over a greater area reducing peak pressure. This provides a livelier more responsive run.