- EMERGENCY SLEEPING BAG: Constructed from durable 28UM PE material with a tear and puncture-resistant coating, this sleeping bag is designed for extreme conditions. It is reusable, water-resistant, and windproof, reflecting 90% of your body heat to keep you warm and safe. - FULL BODY PROTECTION: Measuring 84x36 inches, this survival bivvy sack provides comprehensive coverage for your entire body. Each sleeping bag includes a survival whistle, adding an essential safety feature during emergencies. - MULTIFUNCTIONAL DESIGN: This emergency sleeping bag serves multiple purposes, functioning as an emergency bivy sack, blanket, and survival shelter. It is an ideal solution for various outdoor activities, including camping, hiking, trail running, and travel, ensuring you stay warm and protected from the elements. - LIGHTWEIGHT AND PORTABLE: Weighing only 4 ounces, each sleeping bag comes neatly packed in a drawstring storage bag, making it easy to store in your hiking pack, backpack, go bag, emergency kit, or car glove compartment. - PRACTICAL USE CASES: Whether you are caught in an unexpected cold snap while camping, need extra warmth during a hiking trip, or require a reliable emergency shelter on a road trip, this sleeping bag is a crucial addition to your outdoor gear.