The IllumiNITE Noctunal Reflective Men"s Running Jacket provides wind and water resistance with a 100% polyester shell. This breathable soft shell is comfortable and quiet with rear and front ventilation. When the sun goes down, IllumiNITE technology reflects back a silhouette profile that is easily recognized as a human shape, unlike other reflective strips and trims. This means you will be more visible than ever when you train in low light conditions. Exterior MP3 pocket with cord port, adjustable cuffs and bottom cinch cord.