The women’s Nike Air Zoom Pegasus 37 ‘Valerian Blue’ features a revised cushioning system that replaces the Cushlon foam of the Pegasus 36 with Nike React technology. The full-length Zoom Air unit of the older shoe is similarly swapped out in favor of a forefoot Zoom unit, specifically tuned to meet the needs of female runners. Up top, a two-tone textile upper is reinforced with interior bands for a snug, secure fit.