Muchmore Fireproof Safety Bag is made of the fireproof fiber inside the bag.
Even if battery burn out, Fireproof Safety Bag keep safe from a fire.
It have double covers made fireproof fiber. Because double covers wrap the battery, it's more safe from explosion.
Also you can use like storage bag normally.
And Fireproof Safety Bag is designed using with Muchmore Battery Warmming Tray II.
You can put in Warmming Tray into Safety Bag.