The Nike Pegasus 39 takes you to new heights. Lighter on top than the Pegasus 38 and ideal for any season, it offers a supportive feel that stabilizes the foot, while the cushioning and two Zoom Air units (one more than the Pegasus 38) bring extra oomph to your stride. Your favorite winged shoe is back. It's time to take flight. Absolute comfort Extra padding in the tongue and collar keeps your feet feeling comfortable. Woven mesh, stronger and softer than traditional mesh, throughout the upper offers exceptional breathability and lightness. Support with every step A midfoot strap features Flywire technology for optimal foot support during movement. Put them on, run and feel Nike React technology is made of lightweight, durable foam that ensures a smooth, dynamic stride. It's combined with a Zoom Air unit in the forefoot and heel for a more dynamic feel. Smooth transitions The heel shape optimizes landing for natural transitions from heel to toe. It has a thick foam core for a dynamic stride.