1. Ease of use: Easier than an emergency space blanket, just pull out of the stuff sack, unroll and climb inside. This emergency sleeping bag can be used as a sleeping bag liner to help retain body heat. The bivy sack is compact, lightweight, easy to carry and store. 2. Durability: The emergency bivvy survival sleeping bag is constructed from 26um extra-thick mylar material, waterproof and reusable. It can be folded and stored back into the included waterproof nylon stuff sack for future use. A must-have camping accessory for camping, hiking, and outdoor adventures. 3. Heat retention: Made from reflective polyester film, this emergency sleeping bag helps retain body heat and can increase warmth by up to 20 degrees in cold and harsh weather conditions. Ideal for use in wind, rain, and snow. 4. Emergency use: Multi-functional design allows use as a survival blanket, poncho, or emergency shelter. Suitable for inclusion in emergency preparedness kits or bug-out bags. The bright orange exterior enhances visibility, aiding in rescue situations. Color: Yellow Material: Plastic + Nylon Package Contents: 1 x Tent 1 x Storage Bag 1 x Whistle Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. The measurement allowed error is +/- 1-3cm. Only the above package content is included; other products are not included.