The Brooks Speed Play Running Jacket is constructed of a water & wind resistant fabric that will help repel wind & light showers & thus work perfectly for the transitional season. This ultra-lightweight jacket, offers great protection against cooling weather. The Speed Play Jacket also features reflective tape, designed to enhance your visibility in low light conditions. The two sided zipped pockets, ensure your hands stay warm, while offering you a safe & secure place to store your valuables. A lining of soft fabric around the neck area helps you stay comfortable on the go, while protecting you from possible chafing.