The Nike Women's Pegasus Premium 'Summit White Bright Crimson' showcases a triple-stack of Nike's foremost cushioning technologies. The performance runner rides atop a responsive ZoomX foam midsole, augmented with a full-length Zoom Air unit that's tinted red and contoured to the natural profile of the foot. A layer of ReactX foam under the heel completes the performance features. Up top, a seamless build in stretchy white Flyknit features reflective accents and the Dynamic Midfoot System for a lockdown fit.