NexGen NXM3301SET Men's 'Puffed' Black Heated Textile Vest- Rechargeable Battery Pack IncludedWe 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 Offer.Our Products Are Made to Last and Keep You Warm in All Seasons, and Always Look Great. When You Think of Staying Warm and Staying Protected Think NexGen Heated Apparel.Features:Made Of 100% Nylon Outer Shell Insulated with Taffeta LiningTaffeta Material Is a Crisp, Smooth, Plain Woven Fabric Made From Silk or Cuprammonium Rayons As Well As Acetate and PolyesterFront Zipper Closure2 Lower Outside Hand Pockets with Zipper ClosureFully LinedNexGen Heated Technology Details:Power-On Button on Chest with NexGen Logo: Lights on When OnHeated Panels: Front and Back Heated Panels and 1 Heated Pad on the Back of the Neck3 Heat Settings: Low-95f, Medium-105f, High-120fInside Built in Waterproof Pocket Holds Portable Battery PackPowered 10000 mah 7.4V Rechargeable Battery: IncludedIncluded Battery with Wall Charging Kit NexGen Heat Men's 'Puffed' Textile Heated Vest