Experience explosive performance during interval training thanks to the dynamic support of the Nike Zoom Fly 6. The shoe for when you pick up the pace! Midsole The use of Nike ZoomX foam in this shoe ensures optimal energy return: every step you take provides energy for the next. Nike ZoomX has an energy return of 85%, so you feel propelled while walking. It is also lighter and softer than any other Nike foam. The midsole also contains a Flyplate, also called a Carbon Fiber plate. This plate works like a kind of spring. It propels you forward while walking and contributes to the very responsive feel of the shoes. Upper The upper of the Zoom Fly 6 is made of mesh for good breathability. Outsole The shoe's rubber outsole provides good grip and traction while running. Order and discover the versatility of the Nike Zoom Fly 6 within a few days.