Available in both Men's/Women's styles, this heated jacket is a perfect blend of a quilted nylon torso region to hold the heat around your core and a stretchable softshell bonded fleece fabric on arms and shoulders for unrestricted movement. Comes complete with a 5 volt power bank and USB charging cord. These batteries can be used for heating up the Radiant Jacket or charging your cell phone. Batteries can last for 2-6 hours depending on your heat settings. The 3 level external silicone switch allows the user to easily change heat settings and visually confirm which setting the jacket is on. Red = HighBlue = MediumGreen = Low The Radiant Heated Jacket features a three zone heating system that targets both sides of the chest and the upper/middle back between your shoulder blades. Volt Heated Clothing was born in the Pacific Northwest with a goal to develop heated products to help people look good and feel good regardless of cold temperatures. This was the driving force behind the creation of the Volt Resistance line of heated products.