New version released in 2022/01. Tyvek silver is unlike regular vapor-deposited aluminum sheets, and it does not produce annoying crinkling noise. In addition to the soft texture and texture of the skin and heat retention make it a luxurious sleeping bag. When you have high heat retention, you dont have to worry about condensation on the inside, but it has moisture permeability, so it can wick away moisture and prevent hypothermia. Compact and lightweight, so it is not only useful for evacuation but also for sleeping in the car or camping, etc. Although this is a long-wearing type, it is also made of the same material as the protective (mune) clothes seen on TV and movies, it is also durable. It is also very economical when you think of a high-quality sleeping bag and its maintenance fee (over 2000 yen per time). You can keep it in your emergency bag or in the trunk of your car. Disaster Prevention Management Disaster Prevention Person, Teramura 080-3715-1498