Every detail about this shoe is designed to keep you running longer and performing better. Air ventilation technology, shock absorbing plates for enhanced stability and anatomically designed midsoles for added comfort. All reasons why the Lightning Z will be your new favorite running partner. Dynamotion Fit™ technology and Intercool™ ventilation systems work in harmony to remove heat and humidity from your shoe so that the last thing overheating is your feet. Parallel Wave Plate Technology uniformly disperses shock throughout the sole, providing lightweight cushioning and enhanced stability. Sensor Point suspension system helps connect the wave plate to the floor, increasing stability and traction. Dynamotion Groove increases flexibility and agility while Dura Shield protects toe from the damage of friction to the floor. Wt. 8.4 oz.