The Nike Air Zoom Pegasus 38 Men's Running Shoe continues to use the same responsive foam as the previous model to keep the spring in your step. The forefoot is wider to give your toes more room and the breathable mesh in the upper stretches as you move, both offering an even more comfortable overall feel. Flywire cables lock your foot down to promote more speed. The Nike React foam is lightweight and durable but without bulk and the full-length Zoom Air unit and beveled heel work together for maximum responsiveness in each transition. Features Nike React foam at the midsole is lightweight, springy and durable. More foam means better cushioning without the bulk. An Air Zoom unit at the forefoot is twice as large as previous versions, delivering more bounce with every step. It's top-loaded to be closer to your foot for better responsiveness. A midfoot band adapts to the size of your foot, keeping you comfortable and secure with every step. A translucent upper has the look of speed and is made to help your foot while you run. Mesh details throughout promote ventilation.