Strengthen your pace with the Nike Air Zoom Pegasus 37 shoe. Ensuring the fit loved by runners, the shoe is equipped with an all-new cushioning unit on the forefoot and foam for maximum responsiveness. The result is a durable, lightweight shoe designed for your everyday runs. Nike React foam in the midsole for lightness, elasticity and durability. More foam means more cushioning, no bulk. The Air Zoom unit in the forefoot is twice as large as previous versions, thus offering more elasticity with each step. It is closer to the foot for better responsiveness.