Wind-Shark? 4-Way Stretch Soft Shell Construction Wind-Shark? Protection from Wind, Rain, & Water Fleece Inner Liner Multi-Zone Heat Elements: 2x Chest & 1x Back Integrated Touch Control Button 4 Selectable Heat Settings Includes Integrated Heated Pant Connectors Dual Power Options?12volt Vehicle System or 12volt 5.2mAh Lithium-Ion Battery 12volt Power Lead Adapter Included 12volt Rechargeable Lithium-Ion Battery Included Up to 11 Hours of Power Per Charge