The heated panels are located at the upper back, kidney area, chest and front shoulders and maintain a constant 50°C. The vest is powered by straightforward connection to the motorcycle battery via the supplied loom or from an optional rechargable power pack. ( Note: When using the optional power pack, heat operates in the kidney area only). Power Requirement approx. 2.5Amps at full power. StormRider is the most energy efficient product of its kind on the market today, giving bikers the maximum evenly spread temperature performance across the entire bodywarmer for the lowest power draw from the motorcycle battery. The superb AirXtream fabric will retain the heat generated to serve the torso whilst wicking moisture away from the body to keep the user dry and comfortable all day long. Power Packs must be ordered separately if required Gloves pictured are not included.