Duran 5V2A (Power Bank) Heated Down Jacket Ideal for the commuter, urban warrior, or avid outdoorsman, the Duran Heated Down Jacket Filled with 90% Duck Down 10% Feather. Provides up to 8 hours of radiant heat in extreme temperatures. Great gift idea for hunters and avid campers Jet black with a tailored fit, the power bank slides into a snug interior pocket, while the thermostat switch is on the inside of your lapel Three carbon-fibre heat zones utilize radiant heat technology, powered by your own 5V power bank to deliver consistent heating power for up to 8 hours The thermostat switch is easy to use  high, medium, and low are indicated by a colour coded LED, and includes a warming feature and safety shut off The Duran Heated Down Jacket is backed by Durans one-year warranty; with proper care, it will provide comfortable warmth for 5 - 8 years