Combat the cold with the Nike(R) Pro Hyperwarm(R) Hood. For those long runs in cooler temperatures, the Hyperwarm(R) technology works to keep you warm and dry so you can focus on the journey. With form-fitting comfort and protection below the neck line, wind gusts stay away. This hood also easily converts into a neck gusset so you can choose your comfort once you start to heat it up. FEATURES: Men's tech fabric hood Hyperwarm(R) fabric is designed to keep you warm and dry throughout your run Flat lock construction means no bulky, itchy seams to distract you from your goal Form-fitting comfort and protection below the neck line keep out the cold Easy conversion to a neck gusset helps keep you protected as your temperature changes