Nike Free Run 5.0 Sneakers - Grey

Constructed with at least 20% recycled material, the sock-like upper is designed for running and training. A breathable knit construction provides flexibility and a secure fit for a barefoot sensation. Updated cushioning offers a lighter, softer, and more responsive feel for pavement or track use. updated responsive foam laser-cut flexible sole rubber forefoot and heel breathable knit upper Flywire technology heel pull tab