Features: This USB powered heating sleeping bag features four strategically placed heating pad(shoulders, back, hips, feet) and withstands extreme cold down to 15℃, making it ideal for winter camping gear and outdoor adventures. Constructed with three layer weatherproofs technology – windproof/waterproof polyester shell, hollow fiber insulation, and integrated hoods – this cold weather sleeping bag includes a compressions storage bag for compact portability. Perfect for outdoor enthusiasts, campers, and hikers seeking stable warmth during mountain expeditions, backyard camping, or emergencies preparedness scenarios. Designed for versatile use in wilderness camping, hunting trips, alpines excursions, and even indoor power outages, suitable for standard USB sources like power banks and car chargers. Achieve optimal thermal regulation through adjustable heating modes while maintaining mobility (3.2kg), ensuring safety and comfort during extended outdoor exposure or recovery focused wilderness retreats. Specifications: Component: Polyester+Down Cotton Color: Blue/Gray/Khaki/Orangeness Size: As Pictures Show Package Includes: 1x Heating Sleeping Bag note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color from the item.