Khione 2.0 puffer heated vest to keep you warm during any outdoor activity. Features four patented Microwire™ heating zones and a water-resistant, windproof shell for the ultimate heat and comfort. Four Microwire™ heating zones: Chest (2), Back (1), Neck (1). Constructed with 200-fill synthetic down and is designed to be close-fitting for added warmth. Vest includes a rechargeable 7V lithium-ion battery for up to 8 hours of heat on-demand. Durable ripstop fabric construction. Battery Integrated Temperature Controller. Gerbing 7V Battery Heated Jackets & Vests Include:. 7V 3400 mAH Rechargeable Lithium-ion Battery Pack (25.16Wh). Wall Charger. Detailed Instructions. Gerbing Lifetime Warranty.