The Wolf was designed to be ultra-lightweight, durable, and fashionable. Don't sacrifice fashion for functionality when you can have both with the Wolf Women's Heated Jacket. Get up to 10 hours of heat and control with 3 individual heat settings. Warm Your Core With heat zones in the chest and back, you are heating up your core muscles, increasing circulation, and keeping yourself warm even in the harshest conditions. Control Your Temperature Three distinct heat settings: Low, Medium, and High, you are able to customize your experience to match any situation you're in. All Day Warmth Included is the 6500 milliamp hour Lithium Polymer battery that will last you up to 10 hours on low, 8 hours on medium, and 6 hours on high.