Bivy Sack XL Survival Sleeping Bag with Emergency Whistle

- Comprehensive Bivy Sack Kit: This contains 2 envelope-style double sleeping bags, each of which is equipped with a plastic emergency whistle for signalling distress in unforeseen circumstances. - Material: Tear-resistant reflective thermal polyester film that reflects 90% of body heat. It features high-visibility black stripes along the edges. It is designed for use as an emergency shelter, but is also suitable for camping, hiking and providing outdoor cold protection. - Portable and Spacious：Lightweight for easy carrying and storage. Unfolds to dimensions of 94.5" x 49" (240 x 125 cm) to comfortably accommodate 2 people, making it perfect for families and groups. - Compact and Lightweight: This Emergency sleeping bags for survival contain 2 individually packaged units, each weighing just 150 g. This ultra-lightweight design makes it easy to store and carry. It can be reused and stowed away easily in a rucksack or kept as part of a vehicle first-aid kit for routine use. - Multifunctional Survival Bivy Bags: Versatile use: It can be used as an insulated sleeping bag for camping, hiking, mountaineering and other outdoor activities. It can also be used as a temporary shelter in bad weather, as ground padding and as a thermal blanket.