Nike 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 our most responsive Pegasus ever, providing high energy return unlike any other. With a lighter-than-air upper that's accented with a Realtree camo graphic, it decreases weight and increases breathability so you can fly fast. Specs Circular knit upper helps keep you cool mile after mile.