The Puma Women's Deviate Nitro Running Shoe innovates the trend of max performance running shoes built to make running faster easier. The Nitro foam and entire shoe are very light for the amount of cushioning. Running economy is maximized through the carbon fiber propulsion Innoplate that acts as a lever to propel you forward with each stride! The Deviate Nitro improves efficiency for long runs and is the perfect choice for max cushioning up to and including marathons.