MATERIAL: Nylon Taslon not only warm but also comfortable to touch. FUNCTIONAL DESIGN: The heated jacket with battery has heat-trapping Thinsulate layer that withholds the heat, but allows the moisture to escape. The insulated jacket has a faux-fur hood to protect during extreme weather conditions. THERMAL INSULATION: The battery heated jacket has a tri-zone heating system which includes 3 ultra-fine carbon fiber heating panels placed along the chest and upper back to raise the core body temperature. The battery heated garment uses FAR infrared heating and ActionWave heat reflective technology to deliver hours of heating performance. Safety and Comfortable: heating system ensures you to enjoy comfortable warmth. The graphene carbon fiber line heater has no harmful radiation, stable performance, safety and reliability. The jacket is soft and comfortable, which can help you spend the winter easily. TEMPERATURE SETTING: The long heated jacket is designed with one-touch button,After connecting any USB mobile power supply, just press the button to quickly heat. It has four heat settings - first gear (Red): 53°F, second gear (Purple): 48°F, third gear (Green): 43°F, fourth gear (White): 38°F. PERFECT FOR OUTDOOR LIFE AND ADVENTURES: Ideal gift for families, friends, suits all kinds of situations especially for snowmobile, motorcycle, Mountaineering, Climbing, Hiking or Outdoor working, skiing, Fishing, Hunting against cold chilly winter. WASH&DRY SAFE: Easy care, Machine Washable, the jacket have body protection function, when the temperature is too high, it will stop working immediately. Please take out the power bank and put the USB plug in the pocket before washing. We have many years of customization experience and a professional customization team, welcome to inquire!