The Nike Zoom Pegasus Turbo 2 has a lightweight upper, while the Nike ZoomX foam offers revolutionary responsiveness for long distance training. Mesh breathability The upper made of mesh is lighter than its predecessor. The transparent material makes the shoe as breathable as it looks. Comfortable for long distances A partial liner from the toes to the midfoot, combined with a more traditional shape from the midfoot to the heel, is designed to allow you to train faster and longer. Impact protection The rubber outsole provides impact protection and traction in all directions.