Product Function:The bivvy bag provides heat retention and is insulated in an emergency.In the event of a collapse,the refuge can be set up quickly and efficiently.This is an important part of a survival or camping kit to stay warm at a critical moment.Advantage:The bivvy bag is not easy to tear,has good waterproof performance,strong wind resistance and strong insulation performance.It protects against cold and heat,prevents and resists hypothermia by reducing heat loss from the body.The bivvy bag can be set up quickly and efficiently.Convenient and Practical:Portable and easy to carry to slip this bivvy bag in your backpack,camping gear or car to prepare for any outdoor adventure.The waterproof sleeping bag cover is durable for repeated use and placed back into its portable compact bag.Multipurpose:The bivvy bag equipped with signal whistles and stuff sack.Sleeping bag bright orange outside can be used as a signaling device,attracting others'attention,being a necessary survival tool.The emergency blanket folds into a small size,it can be used almost anywhere stowed away.Applicable Scenarios:Perfect tool to add to the first aid kit,tent bag is essential for outdoor activities,adventure,hiking,and travel,it can be used as an emergency rescue blanket,sleeping bag,picnic blanket,an essential pack for climbers,mountaineers and walkers. Have a great time shopping!