Responsive cushioning in the pegasus provides an energized ride for everyday road running. Experience the highest energy return compared to previous pegasus turbos with a zoomx foam midsole. Plus stretchy flyknit on the upper conforms to your foot for a seamless fit.product details flyknit on upper has perforations to help reduce the weight of the shoe and make it more breathable. zoomx foam midsole offers springy cushioning. high-abrasion rubber on outsole provides traction. midfoot band helps keep you contained.