Venture Heat Outlast 7.4V Mens Battery Heated Jacket: Our unique design is packable activewear that is easy to use, lightweight, and built to last. Lined with an ultra-soft plush fleece layer to trap your natural body heat, this coat is also windproof and water resistant (flexible and breathable). Our ADDHEAT apparel heating system features micro-alloy heating element panels that have been redesigned with a thinner, smoother mesh overlay which allows for maximum efficient heat transfer and safety. Three expanded core body panels use ultra thin, ultra efficient heating elements to provide up to a 10 hour runtime on a the included rechargeable 5200 mAh (7.4V) power bank battery. The built-in smart digital controller allows the wearer to easily turn the heat on/off, and allows users to find their perfect, comfortable warmth with the adjustable 3 heat settings. An excellent clothing choice for winter adventure, outdoor hiking, construction uniform, snow sports, a cold morning commute, and more. Perfect for high intensity outdoor activities (camping, fishing, ultralight, construction wear, snowboarding, ski, snowshoe) and lightweight enough for the daily commuter.