The Pegasus Premium supercharges responsive cushioning with a triple stack of our most powerful running technologies: ZoomX foam, a sculpted Air Zoom unit and ReactX foam. It’s the most responsive Pegasus ever, providing high energy return unlike any other. With a lighter-than-air upper, it decreases weight and increases breathability so you can fly faster. Just imagine how that Swarovski-covered Swoosh will shimmer with every step.