Ultra Lightweight Compact Thermal Sleeping Bag Compact & Ultra Lightweight: The thermal sleeping bag is kept in a small 3.9*5.1-inch bag and weighs only 4.2 ounces. Easily repeat use and store it in your car, backpack, or emergency first-aid case. Perfect for all emergencies. Stay Warm Over 24 Hours: Made from ultra-lightweight PE material, reflecting 90% of your body's heat. Its bright color ensures visibility for rescuers, making it an essential survival tool for camping, hunting, or emergencies. Incredibly Durable: Despite its ultra-thin 28UM thickness, the material is tear-resistant, windproof, and waterproof. Reinforced tape seams create a weather-resistant barrier. Big Size: Measuring 37 * 80.7 inches, it can wrap an adult's body or serve as an emergency blanket for two adults. It also functions as an emergency blanket, awning, floor mat, rescue beacon, poncho, or sunshade.