NexGen Heat NXM3301SET Men's 'Puffed' Black Heated Textile Vest (Rechargeable Battery Pack Included) Features Made Of Nylon Outer Shell Insulated with Taffeta Lining Taffeta Material Is a Crisp, Smooth, Plain Woven Fabric Made From Silk or Cuprammonium Rayons As Well As Acetate and Polyester Front Zipper Closure 2 Lower Outside Hand Pockets with Zipper Closure Fully Lined NexGen Heated Technology Details Power-On Button on Chest with NexGen Logo (Lights on When On) Heated Panels: Front and Back Heated Panels and 1 Heated Pad on the Back of the Neck 3 Heat Settings: (Low-95f, Medium-105f, High-120f) Inside Built in Waterproof Pocket Holds Portable Battery Pack Powered 10000 mah 7.4V Rechargeable Battery (Included) Included Battery with Wall Charging Kit We Use Advanced High Efficiency Long Life Batteries with Up To 7 Hours of Heating. No One Comes Close to What NexGen Can Provide, We Are the Factory and We Have Full Control of How We Design, Fit, And Add Advanced Technology to All Our Heated Gear. You Won’t Find A Better Fit, or Better Heated Jacket For The Prices We . Our Products Are Made to Last and Keep You Warm in All Seasons, and Look Great. When You Think of Staying Warm and Staying Protected Think NexGen Heated Apparel.