Brooks' fastest trainer, designed to keep you running faster, for longer. The new DNA FLASH midsole compound is nitrogen-infused to offer ultralight cushioning plus adaptive energy return. The Hyperion Tempo keeps you running in your preferred motion path, allowing you to save energy and train faster. The breathable stretch-woven upper moves with your foot to provide maximum comfort. DNA FLASH is made with a new nitrogen infusion process optimized for light weight, energy return, and speed.