Lipo protective bag for the safe storage of Lipo battery packs. The fire-retardant special fabric prevents open flame and keeps heat out for a short time. Note: This protective bag is not intended to prevent smoke development, nor is it intended to keep heat out for a longer period of time. In the event of a battery fire inside the protective bag, it can no longer be reused and must be disposed of! Can be closed with a Velcro fastener.